ComplaintCensus

E.ON Energie Deutschland GmbH vs Octopus Energy Germany: most-reported complaints compared

Most-reported issues at E.ON Energie Deutschland GmbH and Octopus Energy Germany, according to reviewers on Trustpilot — classified by our automated reader and backed by verbatim quotes from distinct reviews. This is a side-by-side of what reviewers report, not a score, rating or recommendation for either company.

E.ON Energie Deutschland GmbH

TrustScore 4.3 · 77,349 reviews on Trustpilot.

164 reviews analysed, 2020-11-04 to 2026-08-25.

Complaint rate (recent window): 21%

100% of negative reviews get a company reply.

Support unreachable42%
Support unhelpful24%
Billing errors18%
Other14%
Account/app problems12%
“Contracts sitting in limbo for weeks, disappearing from the portal, and no reply to a cancellation email is unacceptable.”
1★ Trustpilot review, 2025-08-14

Octopus Energy Germany

TrustScore 4.8 · 101,748 reviews on Trustpilot.

129 reviews analysed, 2021-07-07 to 2026-08-22.

Complaint rate (recent window): 4%

97% of negative reviews get a company reply.

Support unhelpful36%
Support unreachable29%
Billing errors13%
Switching problems13%
Overcharging10%
“Clearly wrong information Complete lack of process”
1★ Trustpilot review, 2025-05-27

Reported on both

Issues with an evidenced category (at least two verbatim quotes) on both sides.

IssueE.ON Energie Deutschland GmbHOctopus Energy Germany
Support unreachable42%29%
Support unhelpful24%36%
Billing errors18%13%
Contract term changes10%10%

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. Figures are census classifications, not official statistics, and reflect what reviewers reported — not findings of wrongdoing by either company. Not affiliated with, endorsed by, or sponsored by Trustpilot A/S, E.ON Energie Deutschland GmbH or Octopus Energy Germany.