ComplaintCensus

Billing errors

Wrong amounts charged, duplicate charges, or wrong meter readings and estimates.

9,844complaints of this kind in the census
804companies affected
52%graded severe

Where to escalate

  • Energy Ombudsman — For gas and electricity suppliers, once the supplier has had 8 weeks or issued a deadlock letter.
  • Financial Ombudsman Service — Free and independent for banking, insurance, credit and payments — after you have complained to the firm and waited up to 8 weeks.
  • Citizens Advice consumer service — Free first-line advice on consumer disputes in England, Wales and Scotland.

What people actually describe

“I have sent numerous emails and complaints to the customer service team but there has been no solution.”
2★ review of British Gas, 2026-09-27
“I was apparently on the wrong tariff and Octopus hadn't received my”
1★ review of Octopus Energy, 2026-09-26
“withholding my money. I was forced to aggressively chase their abysmal customer service just to find out why my refund was delayed”
1★ review of Wise , 2026-09-26

Companies with the most reports of this kind

CompanyReportsShare of its complaints
British Gas30128%
Octopus Energy21128%
E.ON Next Energy Ltd20219%
EDF UK19129%
OVO18725%
Outfox Energy17429%
ScottishPower17321%
T-Mobile15227%
Paylaterr14435%
ACE Money Transfer13025%
Virgin Media11710%
Wise 11510%

Counts depend on how many of each company’s reviews are in the census, so this ranks what we have read, not the whole market. See the full ranking.