Free first complaint letter

Hold your energy company to account

using the power of AI

AI-powered complaint letters that cite the regulations your supplier must follow. Know your rights. Know what you're owed. Get results.

Popular:

10
Energy companies covered
10
Complaint categories
8 weeks
To escalate to Ombudsman
£30+
Per missed appointment

How it works

From search to sent in under 5 minutes. No legal knowledge required.

1

Find your company

Search for your energy supplier. We have all the major UK providers with their correct complaints procedures.

2

Tell us what happened

Answer a few guided questions. Our AI identifies the regulations that apply and calculates what you may be owed.

3

Get your letter

Receive a professional complaint letter citing specific legislation. Download, email, or post it - your choice.

4

We track the response

We monitor deadlines and prompt you when it is time to follow up or escalate to the Energy Ombudsman.

More than a template letter

GL Complaint analyses your situation, identifies which rules apply, and generates a personalised letter that carries weight.

AI-Drafted Letters

Professional complaint letters citing the specific Ofgem regulations your supplier must follow. Ready in under 2 minutes.

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Compensation Calculator

Know exactly what you are owed. Our AI calculates guaranteed standards payments, back-billing write-offs, and goodwill compensation.

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Automated Escalation

If your supplier does not resolve your complaint, we generate deadlock requests and Energy Ombudsman submissions automatically.

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Deadline Tracking

Never miss a response deadline. We track your supplier's response period and alert you when it is time to escalate.

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Evidence Checklist

Know exactly what evidence to gather. Each complaint type has a tailored checklist based on what the ombudsman looks for.

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Your Data, Protected

UK GDPR compliant. Your complaint data is never shared or used for marketing. Encrypted in transit and at rest.

Your rights are stronger than you think

UK energy regulation gives consumers powerful protections. Most people never use them because they do not know they exist. GL Complaint puts these rights to work for you:

12-month back-billing capOfgem SLC 21B
£30 per missed appointmentGuaranteed Standards
Meter readings must be attempted every 2 yearsOfgem SLC 21A
30 days notice before price changesOfgem SLC 23
8 weeks maximum before ombudsman accessOfgem SLC 31
Fair treatment obligation on all interactionsOfgem SLC 0

Frequently asked questions

Is GL Complaint free?
Your first complaint letter is free. Additional letters and escalation documents are available on a pay-per-use basis.
Is this legal advice?
No. GL Complaint provides tools and information, not legal advice. Our letters cite publicly available regulations and ombudsman guidance. For regulated advice, consult a solicitor - or use our GLEAN network for a professional review.
Which companies do you cover?
We currently cover all major UK energy suppliers including British Gas, OVO, EDF, Octopus, E.ON Next, Scottish Power, and more. Broadband, water, and telecoms sectors are coming soon.
What is the Energy Ombudsman?
The Energy Ombudsman is an independent body that resolves disputes between consumers and energy suppliers. If your supplier has not resolved your complaint within 8 weeks, you can escalate to the Ombudsman for free. Their decisions are binding on the supplier.
How does the compensation calculator work?
We reference Ofgem's Guaranteed Standards of Performance, back-billing rules, and established ombudsman precedent to estimate what you may be entitled to. Amounts are estimates based on published rules - actual outcomes may vary.
How is this different from a template letter?
Template letters are generic. GL Complaint analyses your specific situation, identifies which regulations apply, and generates a personalised letter citing the exact rules your supplier has breached. Each letter is different because each complaint is different.

Ready to complain with confidence?

Your first complaint letter is free. No signup required to get started.

Start Your Complaint