Free complaint letter templates for every UK company.
Independent scorecards built from official UK regulator data. Check any bank, energy supplier, broadband provider or insurer before you switch.
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Browse by Sector
Banks
162 companies ranked
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Energy Suppliers
10 companies ranked
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Broadband Providers
18 companies ranked
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Insurers
92 companies ranked
View all insurers →
Latest Data Updates
Banks
2025-01-01 to 2025-06-30
Energy Suppliers
2024-H2
Broadband Providers
Latest Quarter
Insurers
2025-01-01 to 2025-06-30
How It Works
Official Data
We collect complaint statistics from the FCA, Ofgem, Ofcom and the Financial Ombudsman Service — the same bodies that regulate these companies.
Fair Comparisons
Raw complaint numbers favour larger companies. We calculate rates per 1,000 customers so you can compare fairly, regardless of company size.
Plain English
Regulator data is buried in spreadsheets. We turn it into simple scorecards with trends, comparisons and clear ratings for every brand.
Need to Complain?
Write a Complaint Letter
Generate a free, professional complaint letter for any company. Pre-filled with the right contacts and regulatory references.
Know Your Rights
Step-by-step guides to complaining effectively. Consumer rights, escalation timelines, and when to contact the ombudsman.
Regulators & Ombudsmen
Find the right regulator or ombudsman for your complaint. Contact details, how to escalate, and what they can do for you.