ClearComplaint

AI-Assisted Complaint Letter Builder

Create a structured UK complaint letter designed to get a response

ClearComplaint helps you generate a focused, professional complaint letter tailored to the business and outcome you want.

Start my letter See how it works

Your information is private and never shared.

Start building your complaint letter

We’ll use this to tailor your letter. You can review and edit everything.

Search recognises companies, complaint types, sector hubs and guides.

Ryanair British Gas Vodafone UK Evri Lloyds Bank

Structured for clarity

Logical, easy-to-follow letters that communicate your issue effectively.

Consumer-focused wording

Plain English that puts your concerns across fairly and firmly.

Designed to encourage a response

Letters built to prompt timely replies and resolution.

UK-friendly guidance

Written with UK consumer rights and standards in mind.

How it works

1

Tell us the business and issue

Enter a few details about the business, your issue and the outcome you’re looking for.

2

Review your draft

We create a tailored draft complaint letter for you to review and adjust.

3

Unlock the full complaint letter

Download your polished letter, ready to send.

Everything you need in one place

  • Tailored letters that reflect your situation
  • Clear, structured and professional formatting
  • Customise, edit and make it your own
  • Download in Word or PDF format
  • Guidance and tips at every step

Example complaint letter preview

Draft preview

Dear Customer Relations Team,

I am writing to formally raise a complaint regarding the service I received on 12 April 2024 relating to my account ending 1234.

Despite raising this issue on several occasions, it remains unresolved and continues to cause me inconvenience.

I would like you to:
• Refund the £120.00 charged on 12 April 2024.

I look forward to your prompt response.

View full letter →

Complaint routes

Choose the type of complaint

Start with the sector to find the right company pages, complaint routes and supporting guidance.

View all sectors
Sector hub Airlines Create an airline complaint letter for delays, cancellations, refunds, baggage issues or poor service. Add evidence and choose an outcome. 17 company pages → Sector hub Banking Create a banking complaint letter for fraud, chargebacks, fees, account issues or poor service. Add evidence and request a clear outcome. 19 company pages → Sector hub Couriers Create a courier complaint letter for lost parcels, late delivery, damaged items, tracking issues or failed collections. 8 company pages → Sector hub Credit cards Create a credit card complaint letter for disputed transactions, fraud handling, chargebacks, Section 75 claims or fees. 10 company pages → Sector hub Energy Create an energy complaint letter for billing disputes, direct debit issues, smart meters, price rises or poor service. 15 company pages → Sector hub Insurance Create an insurance complaint letter for claim delays, rejected claims, settlement disputes or poor service. Add evidence and request a remedy. 13 company pages →

Popular letters

High-intent routes for common UK consumer issues.

Popular letter Ryanair flight delay Generate a complaint letter for delayed or cancelled Ryanair flights. Open complaint route → Popular letter British Gas billing dispute Complain about incorrect energy bills, account errors or service failures. Open complaint route → Popular letter Vodafone broadband or billing complaint Create a complaint about broadband speed, service outages or billing problems. Open complaint route → Popular letter Evri lost parcel Generate a complaint for missing, delayed or damaged parcel deliveries. Open complaint route → Popular letter Lloyds Bank complaint Start a complaint about banking service, account handling or charges. Open complaint route → Popular letter Admiral insurance complaint Create a complaint about claims handling, renewals or policy disputes. Open complaint route →

Guides and articles

Consumer rights guidance

Practical guidance that supports clearer, better-directed complaints.

View all guides
general Why most UK refund complaints fail and how to fix them (2026 guide) Company refusing a refund? Learn why refund complaints fail, what UK law says, and how to structure a legally framed refund complaint letter that gets results. Read guide → general Complaint Letter for Faulty Goods After 30 Days (UK) Retailer refusing help with faulty goods after 30 days? Learn your rights under UK consumer law and how to write a structured complaint letter that gets a response. Read guide → general How to Complain to a Company in the UK (Step-by-Step Guide 2026) Learn how to complain to a company in the UK with our clear, step-by-step guide. Get advice on writing effective complaint letters in 2026. Read guide →

Need help or have a question?

We’re here to help you make your complaint clear and effective.

Visit our Contact page →
Helpful guidancePractical articles and tips
Email supportWe aim to reply within 1 business day
Clear answersSimple next steps if you need help
Start my letter