How to Complain About Deloitte UK
Everything you need to make an effective complaint against Deloitte UK, including contact details, your rights, deadlines, and escalation paths.
Also known as: Deloitte
Contact Details
complaints@deloitte.co.uk
020 7936 3000
Step-by-Step Complaint Guide
Gather your evidence
Collect all correspondence, receipts, contracts, and any other documents related to your issue with Deloitte UK. Take screenshots of online chats and note down phone call dates and times.
Write a formal complaint
Send a clear, factual complaint to Deloitte UK. Include your account/reference number, a timeline of events, what went wrong, and what you want them to do about it. Email: complaints@deloitte.co.uk
Set a deadline
Give Deloitte UK 14 days to respond to your initial complaint. If they don't respond, send a follow-up referencing your original complaint and requesting a response within 7 days.
Escalate if needed
If Deloitte UK hasn't resolved your complaint within 8 weeks, consider escalating to the relevant ombudsman or regulatory body for your sector.
Consider further action
If ombudsman resolution isn't satisfactory, you may have the option of taking your case to the Small Claims Court for disputes up to £10,000.
Escalation Routes
ICAEW
FRC
Key Deadlines
| Initial response | 14 days (reasonable expectation) |
| Final response | 8 weeks (regulatory deadline for most sectors) |
| Ombudsman referral | After 8 weeks or final response |
| Limitation period | 6 years (contract) / 3 years (personal injury) |
Need Help With Your Complaint?
Frank can help you draft a professional complaint letter, track deadlines, and guide you through the escalation process.