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Complaint escalation letter

Your first complaint was ignored and you are taking it further.

When a first complaint goes unanswered or is fobbed off, the escalation is what moves it. It references the original, states plainly that it was not resolved, and sets a deadline and a next step.

Keep the facts and dates tight, and name what you will do next. A specific consequence is what gets an escalation read.

Tone

Firm is still professional. It states a date and what happens after it, rather than raising its voice.

About you
The complaint

No reply, a reply that did nothing, a promise not kept.

What now

One item per line.

Date format

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24 August 2026
Escalation of an unresolved complaint
Dear Sir or Madam,

I am following up on a complaint I first made on about. As it has not been put right yet, I wanted to raise it with you again in the hope of settling it.

Thank you for looking into this again.

Yours faithfully,

Still to fill in: your full name, company name and address, when you first complained, what the complaint was about, what you want done.

A finished example

The same template with every field filled in. The names and details are invented.

Ian Docherty
77 Maple Street
Glasgow G12 8QQ
Ref: CU-55210
Customer Relations
Northline Broadband
PO Box 88, Glasgow
24 August 2026
Escalation of complaint CMP-40921
Dear The Customer Relations Manager,

I am following up on a complaint I first made on 20 July 2026, reference CMP-40921 about a broadband fault that has left me without a working connection for three weeks. I was promised a callback within 48 hours and have heard nothing in over two weeks. As it has not been put right yet, I wanted to raise it with you again in the hope of settling it.

To put things right, I would be grateful if you could restore the connection or confirm a firm engineer date, Refund the period I have been without service and Confirm the compensation your policy provides for missed appointments.

It would help to have a response by 7 September 2026, so I know where things stand.

If we cannot resolve it between us, I may then refer the complaint to the communications ombudsman.

Thank you for looking into this again.

Yours sincerely,
Ian Docherty

Escalation of complaint CMP-40921 Dear The Customer Relations Manager, I am following up on a complaint I first made on 20 July 2026, reference CMP-40921 about a broadband fault that has left me without a working connection for three weeks. I was promised a callback within 48 hours and have heard nothing in over two weeks. As it has not been put right yet, I wanted to raise it with you again in the hope of settling it. To put things right, I would be grateful if you could restore the connection or confirm a firm engineer date, Refund the period I have been without service and Confirm the compensation your policy provides for missed appointments. It would help to have a response by 7 September 2026, so I know where things stand. If we cannot resolve it between us, I may then refer the complaint to the communications ombudsman. Thank you for looking into this again. Yours sincerely, Ian Docherty

Questions

When should I escalate a complaint?
When the first complaint got no reply within the time promised, or a reply that did not resolve it. Escalating restates the facts, references the original, and makes clear it is now a step up.
How long should I give them?
A common window is 14 days for an escalation, on top of whatever the first complaint allowed. State a date, so there is a clear point after which you act.
What is a good next step to name?
Whatever genuinely applies: an ombudsman or regulator for that industry, a chargeback through your card provider, or a small claim. Name it only if you mean to use it.
Should the tone be angry?
No. Firm and factual carries further than angry. The firm setting here states things plainly and sets a deadline without insults, which is what gets an escalation taken seriously.