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How to Complain to Green Flag
Green Flag says you can complain by phone, through its online complaints portal or by post to Customer Relations. It aims to resolve things within three working days, with investigations taking up to eight weeks. If it is not put right, you can take it to Financial Ombudsman Service.
Your Rights
What the rules say, with a link to the official source for each.
Complaining to Green Flag
How to Complain
Green Flag says you can complain by phone, through its online complaints portal or by post to Customer Relations. It aims to resolve things within three working days, with investigations taking up to eight weeks. source
When You Can Escalate
After eight weeks, or if you remain dissatisfied with the final response Scheme: Financial Ombudsman Service. source
Time Limits to Know
Miss a deadline and you can lose a right. Check the dates on your own paperwork.
- 8 weeksGo to Financial Ombudsman ServiceOr sooner if Green Flag sends a final (deadlock) response
Steps to Take
Step 1 of 5
Gather your evidence: order, account or booking number, dates, receipts, screenshots, emails and notes of calls.
Step 2 of 5
Complain to Green Flag in writing using the route below, and ask for a complaint reference. Say what went wrong, what you want, and by when (14 days is reasonable). Our free letter templates can write it for you.
Step 3 of 5
Keep a record of every contact: dates, names and reference numbers. Use email or a form where you can, so you have proof.
Step 4 of 5
If you are not getting anywhere, ask for a final response in writing.
Step 5 of 5
If it is still not put right, take it to Financial Ombudsman Service.
(Tap the numbers to reveal steps)
Where to Go If It Is Not Put Right
Your options, in order, and when each one applies. Most are free; court claims have fees.
Green Flag Complaints
Always start here, in writing.
Financial Ombudsman Service
After 8 weeks, or when you get a final (deadlock) response.
Your Card Provider
If you paid by card, Section 75 (credit card) or chargeback (debit card) may help.
Citizens Advice Consumer Service
Free advice. It can pass a report to Trading Standards.
Small Claims Court
A last resort if nothing else works. Citizens Advice explains when it is worth it.
Good to Know
Small things that make your complaint stronger.
Green Flag says you must refer a case to the Financial Ombudsman Service within six months of its response letter.
Under the Consumer Rights Act 2015, a car bought from a dealer must be of satisfactory quality, fit for purpose and as described. The same right to reject within 30 days and the 6-month presumption of a fault being there from the start are set out for goods generally.
Keep the advert, invoice, service history and every message. Report faults in writing straight away and keep copies of repair invoices.
Garage work must be done with reasonable care and skill and within a reasonable time. You can ask for it to be put right or for a price reduction.
Consumer Protection UK is independent and is not connected to Green Flag. This guide uses information published by Green Flag and the schemes named here. All product names, logos and brands are property of their respective owners.
Want Help?
If you would like one of our team to look at your problem, our initial case review is free. We cannot guarantee any outcome and we do not give legal advice.
Lead reviewer
Luke Marley
Founder and Lead Reviewer
Luke founded CPUK in 2026 after seeing how hard it is for ordinary people to get problems with companies put right. He oversees our guides and checks them against official sources.
Research by Katie Burt, Co-founder and Operations Lead (17 years in the care sector, including managing services for vulnerable adults), and the CPUK Research Team. Researched with AI-assisted research tools, then checked and corrected by our team.
Last checked: 4 October 2026. We are not paid by the companies we write about. Adverts never affect our guidance. Read our editorial policy.
Sources and official links
- greenflag.com/contact-us/complaints Checked 4 October 2026