ComplaintCensus

E.ON Next Energy Ltd: most-reported complaints

Automated analysis of 3,507 public Trustpilot reviews published 2026-07-04 to 2026-09-26. TrustScore 4.5 from 234,233 total reviews — see the Trustpilot page. Quick answer: is E.ON Next Energy Ltd legit? Issues below reflect what reviewers reported, not findings of wrongdoing.

Reviewers most often report that customer support is unhelpful, with 329 complaints identified during the analysis period. Billing errors are the second most frequent issue, cited in 202 reviews, followed by overcharging in 121 reviews. Additionally, 113 reviewers stated that support was unreachable. The trend for unhelpful support is rising, while the trends for billing errors, overcharging, and unreachable support remain flat.

How to reach E.ON Next Energy Ltd

These are the contact details E.ON Next Energy Ltd publishes on its Trustpilot profile, as of our last check on 2026-09-26 — it publishes no phone number there, email [email protected], address Westwood Way Business Park, Coventry, CV48LG, GB.

1,048complaints identified
12%of recent reviews analysed
100%of negative reviews get a company reply, typically within a day

The company claimed its Trustpilot profile on 2020-05-06, uses Trustpilot’s paid features, uses Trustpilot’s AI-assisted replies, and last replied to a negative review on 2026-09-25. Trustpilot ranks it 17 of 38 in Energy Supplier. We last checked this profile on 2026-09-26 and found 200 new reviews. These are facts Trustpilot publishes about the profile, as of our last harvest.

Official complaint record

Citizens Advice (Q4 2025): 3.71★ Citizens Advice customer-service rating. source

Citizens Advice (Q4 2024): 3.07★ Citizens Advice customer-service rating. source

Citizens Advice (Q4 2023): 3.29★ Citizens Advice customer-service rating. source

Citizens Advice (Q4 2022): 2.2★ Citizens Advice customer-service rating. source

Citizens Advice (Q4 2021): 2.9★ Citizens Advice customer-service rating. source

Citizens Advice (Q4 2020): 2.35★ Citizens Advice customer-service rating. source

Citizens Advice (Q4 2019): 3.35★ Citizens Advice customer-service rating. source

Citizens Advice (Q4 2018): 3.25★ Citizens Advice customer-service rating. source

Citizens Advice (Q4 2017): 3.3★ Citizens Advice customer-service rating. source

Citizens Advice (Q3 2025): 3.07★ Citizens Advice customer-service rating. source

Citizens Advice (Q3 2024): 3.07★ Citizens Advice customer-service rating. source

Citizens Advice (Q3 2023): 2.5★ Citizens Advice customer-service rating. source

Citizens Advice (Q3 2022): 2.4★ Citizens Advice customer-service rating. source

Citizens Advice (Q3 2021): 2.4★ Citizens Advice customer-service rating. source

Citizens Advice (Q3 2020): 2.4★ Citizens Advice customer-service rating. source

Citizens Advice (Q3 2019): 3.7★ Citizens Advice customer-service rating. source

Citizens Advice (Q3 2018): 2.9★ Citizens Advice customer-service rating. source

Citizens Advice (Q2 2025): 3.07★ Citizens Advice customer-service rating. source

Citizens Advice (Q2 2024): 3.07★ Citizens Advice customer-service rating. source

Citizens Advice (Q2 2023): 2.9★ Citizens Advice customer-service rating. source

Citizens Advice (Q2 2022): 2.7★ Citizens Advice customer-service rating. source

Citizens Advice (Q2 2021): 2.7★ Citizens Advice customer-service rating. source

Citizens Advice (Q2 2020): 3.7★ Citizens Advice customer-service rating. source

Citizens Advice (Q2 2019): 3.35★ Citizens Advice customer-service rating. source

Citizens Advice (Q2 2018): 3.15★ Citizens Advice customer-service rating. source

Citizens Advice (Q1 2026): 3.71★ Citizens Advice customer-service rating. source

Citizens Advice (Q1 2025): 3.07★ Citizens Advice customer-service rating. source

Citizens Advice (Q1 2024): 2.96★ Citizens Advice customer-service rating. source

Citizens Advice (Q1 2023): 2.6★ Citizens Advice customer-service rating. source

Citizens Advice (Q1 2022): 2.4★ Citizens Advice customer-service rating. source

Citizens Advice (Q1 2021): 2.45★ Citizens Advice customer-service rating. source

Citizens Advice (Q1 2020): 3.15★ Citizens Advice customer-service rating. source

Citizens Advice (Q1 2019): 3.2★ Citizens Advice customer-service rating. source

Citizens Advice (Q1 2018): 2.95★ Citizens Advice customer-service rating. source

Official figures reported by the regulator/ombudsman named; independent of our review analysis.

Forum footprint: 8 MoneySavingExpert forum discussions mention this company (browse). Roughly 0 of the top, relevance-sorted search results were posted in the last 90 days — an approximate figure by construction, not a true recency count. Recent thread titles: “E.on next energy readings not updating”, “E.ON Next Energy Supplier charging to leave!.”, “Sainsburys energy”.

Elsewhere: 4.2★ on Google (4,379 reviews) · 4.8★ App Store (49,369) · 4.3★ Google Play (16,172) · 1.08★ Reviews.io (13)

TrustScore over time

4.5 → 4.5 across 14 census measurements since 2026-08-13. Our own record, independent of Trustpilot’s display.

Reply behaviour over time

Solid: % of negative reviews replied to. Dashed: typical days to reply. Both as reported on this company’s Trustpilot profile, recorded whenever our census re-checked it and a figure had changed — the gaps between points are not equal: 2026-08-13 (100%, 0.1d) · 2026-08-16 (100%, 0.1d) · 2026-08-20 (100%, 0.1d) · 2026-08-23 (100%, 0.1d) · 2026-08-26 (100%, 0.1d) · 2026-09-01 (100%, 0.1d) · 2026-09-04 (100%, 0.1d) · 2026-09-07 (100%, 0.1d) · 2026-09-10 (98%, 0.1d) · 2026-09-13 (98%, 0.1d) · 2026-09-16 (98%, 0.1d) · 2026-09-20 (100%, 0.1d) · 2026-09-23 (99%, 0.1d) · 2026-09-26 (100%, 0.1d).

Severity: 19% of this company’s 1048 graded complaints were classified as severe (money lost, an essential service cut off, or a problem unresolved for months). See the harm index.

Reviewers here waited a median of 0.8 days between the experience and publishing their negative review (1184 reviews record both dates).

E.ON operates in 5 markets we track — compare its complaint mix by country.

Official record vs what reviewers say

Solid: CITIZENS_ADVICE complaints per 100,000 customers, Q4 2017 to Q1 2026 (34 quarters of official data). Dashed: our share of complaints about “support unhelpful” over our census window. The two series measure different things over different periods and are shown for context, not as a like-for-like comparison.

Regulator enforcement

  • OFGEM, 2023-02-02 — The Authority has decided not to confirm the Provisional Order. The Provisional Order has lapsed and ceased to have effect on 2 May 2023. (notice)

Formal action published by the named regulator. Penalty figures are quoted as the regulator stated them; where no figure is shown the action carried none or none was published. Historic actions may predate current management or ownership.

Independent findings

Which?’s 2026 energy supplier survey scored E.ON Next Energy Ltd across 15 published metrics.

  • complaints performance: 8/15
  • accurate payments: 3
  • clarity of statements: 2
  • contacting your supplier: 7/12
  • customer communications: 2
  • customer score: 66
  • ease of contacting: 3
  • overall customer service: 2
  • smart meters: 8/10
  • supporting customers who need it: 9/10
  • switching: 2/5
  • total score: 66
  • usefulness of communications about energy costs: 2
  • value for money: 2
  • which assessment score: 65

source

These are the findings of the named independent body, reported here with attribution — they are not our conclusions and are separate from the review analysis above.

What their policy promises

support availability: help available

“We're here to help you find your way around your smart meter in-home display.”

support availability: Energy Specialists

“Watch our Energy Specialists guide you through each step of the process.”

support availability: contact us

“If that doesn't work, please contact us.”

support availability: contact new supplier

“please contact your new supplier to find out more.”

Quoted verbatim from the company’s own published policy (source page); complaint counts are census classifications. As of 2026-09-12.

Policy-page monitoring

We monitor this company’s published policy page for changes. No changes have been detected since we started watching on 2026-09-01.

Automated change detection on the company’s own published policy page — a record of when the page changed, not a judgement on what changed.

Measured reply time: across 1017 negative reviews that received a public reply, the median wait was 0.1 days — the company profile reports an average of under a day.

Reply quality: of 1017 company replies to negative reviews analysed, 56% engaged with the specific problem and 41% were generic templates.

Review provenance: 2619 company-invited reviews in the recent window average 4.47★, while 76 organic (uninvited) reviews average 3.29★.

15% of its 1994 recent 5★ reviews came from accounts that had written only that one review when we captured it (the median across companies is about 39%). A high share is a reason to look closer, not evidence of fake reviews.

Sector benchmark: support unhelpful makes up 31% of this company’s complaints vs a 29% median across 111 ranked companies in its sector.

Review velocity: 59,117 of this company’s 234,233 Trustpilot reviews (25%) were written in the last 12 months.

What are the most common complaints about E.ON Next Energy Ltd?

Support unhelpful

329 reports · 31% of complaintsrising since 2026-09
“Took them 6 months and utterly unhelpful the whole way blaming everyone apart from themselves.”
1★ Trustpilot review, 2026-09-06 · classified as a severe complaint

1 reader marked this review helpful on Trustpilot.

“They sent 7 Bills for gas usage and letters telling me they where passing my account to debit collection agency”
1★ Trustpilot review, 2026-09-06 · classified as a severe complaint

1 reader marked this review helpful on Trustpilot.

“I was specifically told by a member of staff that I would receive the required documents/approval within one day.”
1★ Trustpilot review, 2026-08-29

1 reader marked this review helpful on Trustpilot.

Billing errors

202 reports · 19% of complaintssteady
“They sent 7 Bills for gas usage and letters telling me they where passing my account to debit collection agency”
1★ Trustpilot review, 2026-09-06 · classified as a severe complaint

1 reader marked this review helpful on Trustpilot.

“My vastly inflated final bill, some £500 overcharge, was based on a false reading”
1★ Trustpilot review, 2026-08-19 · classified as a severe complaint

The company replied on 2026-08-19: “Hi William, Thankyou for your feedback and i apologise for the bill that you had received. I have had a look at this issue and can see the issue has been resolved. If there is any further assistance…”

Our classifier read this reply as a template response.

1 reader marked this review helpful on Trustpilot.

“I rcvd a snail mail bill that wasn't mine this am”
1★ Trustpilot review, 2026-08-18 · classified as a severe complaint

The company replied on 2026-08-19: “Hi Martin, Thankyou for the feedback i have sent you a message for some further information and will make sure this is sorted for you. Sorry for the inconvenience caused. I look forward to hearing…”

Our classifier read this reply as a substantive response.

It promised: to make contact.

1 reader marked this review helpful on Trustpilot.

Overcharging

121 reports · 12% of complaintssteady
“My vastly inflated final bill, some £500 overcharge, was based on a false reading”
1★ Trustpilot review, 2026-08-19 · classified as a severe complaint

The company replied on 2026-08-19: “Hi William, Thankyou for your feedback and i apologise for the bill that you had received. I have had a look at this issue and can see the issue has been resolved. If there is any further assistance…”

Our classifier read this reply as a template response.

1 reader marked this review helpful on Trustpilot.

“Bill has doubled & put me in £400 dept? Ridiculous”
1★ Trustpilot review, 2026-08-18 · classified as a severe complaint

The company replied on 2026-08-19: “Hi Jenna, Thankyou for your feedback. I have sent you a message with some further information and will hopefully be able to get this looked into for you. I look forward to your response. Thanks Lubna”

Our classifier read this reply as a substantive response.

It promised: to escalate.

1 reader marked this review helpful on Trustpilot.

“Not content with holding over £400 of my cash already”
1★ Trustpilot review, 2026-08-15 · classified as a severe complaint

The company replied on 2026-08-15: “Hi there, Hello, Thank you for sharing your feedback. I’m sorry to hear about your frustration regarding the balance on your account and the request for additional payments. I understand how…”

Our classifier read this reply as a substantive response.

It promised: to make contact.

1 reader marked this review helpful on Trustpilot.

Support unreachable

113 reports · 11% of complaintssteady
“Not heard anything since submitting 1000 forms”
1★ Trustpilot review, 2026-08-18

The company replied on 2026-08-19: “Good afternoon Michael Thank you for taking the time to leave a review on Trustpilot. I’m sorry to hear that you’ve experienced issues with knowing about your account being set up for your solar…”

Our classifier read this reply as a substantive response.

It promised: to escalate.

1 reader marked this review helpful on Trustpilot.

“radio silence since being informed the matter was being passed onto the metering team.”
2★ Trustpilot review, 2026-08-17

The company replied on 2026-08-17: “Good Evening Thank you for getting in touch and for the feedback I am so sorry your smart meter is not transmitting or that you have not had a response regarding getting it sorted, I will be in touch…”

Our classifier read this reply as a substantive response.

It promised: to make contact.

1 reader marked this review helpful on Trustpilot.

“you cut my power supply without contacting me”
1★ Trustpilot review, 2026-09-18 · classified as a severe complaint

The company replied on 2026-09-18: “Hello Dave Thank you for sharing your feedback. I am truly sorry to hear about the frustrating experience you've had with your power supply being cut and the long wait for an engineer. This is…”

Our classifier read this reply as a substantive response.

It promised: to make contact.

Account/app problems

98 reports · 9% of complaintssteady
“Problem still not resolved. Slow customer service response.”
2★ Trustpilot review, 2026-09-13 · classified as a severe complaint
“the agent told me I didn’t have an account (which I do)”
3★ Trustpilot review, 2026-09-04 · classified as a severe complaint

The company replied on 2026-09-04: “Good morning Dan Thank you for taking the time to leave a review on Trustpilot. I’m sorry to hear about the issues you’ve experienced with your account and getting it up and running. We understand…”

Our classifier read this reply as a template response.

“with DD massively relentlessly overcharging.”
1★ Trustpilot review, 2026-08-31 · classified as a severe complaint

The company replied on 2026-08-31: “Hello Paul, Thankyou for taking the time out to leave your review. I am really sorry about the experience you have had. I will get in touch with you for some further information. Kind Regards Lubna”

Our classifier read this reply as a substantive response.

It promised: to make contact.

Other

82 reports · 8% of complaintssteady
“I’ve had 6 weeks off electric problems and there just going round in circles had to change suppliers”
1★ Trustpilot review, 2026-08-24 · classified as a severe complaint

The company replied on 2026-08-24: “Good Evening Thank you for getting in touch and for the feedback I am so sorry for the problems, and that you are not progressing, I can see the complaint handler is looking into this and will be in…”

Our classifier read this reply as a substantive response.

It promised: to escalate.

1 reader marked this review helpful on Trustpilot.

“As always, e.on are robbing bastards.”
1★ Trustpilot review, 2026-08-18

The company replied on 2026-08-18: “Hello Kerry, I have picked up your Trust Pilot review, thank you. We appreciate all feedback as this helps us grow as a business and improve our customer journey and service. I'm sorry you feel that…”

Our classifier read this reply as a template response.

1 reader marked this review helpful on Trustpilot.

“company is terrible to deal with.”
3★ Trustpilot review, 2026-08-18

The company replied on 2026-08-18: “Hello Colm, Thank you for taking the time to leave us a review on Trustpilot. I truly appreciate your feedback, and I want to express my sincere concern regarding the issues you've raised. It saddens…”

Our classifier read this reply as a template response.

1 reader marked this review helpful on Trustpilot.

Method: reviews are classified into a fixed complaint taxonomy by an automated reader; every category shown is backed by at least two verbatim quotes from distinct reviews. Trends are computed from dated review counts only. Negative reviews are deliberately over-sampled for evidence depth; headline percentages use an unbiased recent sample only. Report updated 2026-09-26.