O2 vs Vodafone UK: most-reported complaints compared
Most-reported issues at O2 and Vodafone UK, 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.
O2
TrustScore 2.8 · 25,271 reviews on Trustpilot.
1,078 reviews analysed, 2026-06-09 to 2026-09-26.
Complaint rate (recent window): 39%
31% of negative reviews get a company reply.
“Received a letter asking for £16 on an account that we had cancelled, saying debt collectors would be sent!!”
Vodafone UK
TrustScore 4.7 · 143,505 reviews on Trustpilot.
3,297 reviews analysed, 2024-01-31 to 2026-09-25.
Complaint rate (recent window): 8%
99% of negative reviews get a company reply.
“I’ve been waiting over a month for my Vodafone broadband to be activated”
Reported on both
Issues with an evidenced category (at least two verbatim quotes) on both sides.
| Issue | O2 | Vodafone UK |
|---|---|---|
| Support unhelpful | 51% | 52% |
| Poor core service | 27% | 30% |
| Support unreachable | 17% | 17% |
| Billing errors | 13% | 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, O2 or Vodafone UK.