Complaint Letter About Poor Service
Complains about a missed appointment or failed service, and asks for redress.
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Dear Sir / Madam,
I am writing to complain about the service on the account above.
[what went wrong, with dates]
I am asking you to [what you want them to do].
Please treat this as a formal complaint and confirm within [days] days what you will do. Please also send me a copy of your complaints procedure and tell me which ombudsman or regulator covers you, so I know where this goes next if we cannot resolve it between us.
What is a Complaint Letter About Poor Service?
A service failure complaint is a written record that something you paid for was not delivered as agreed — the engineer who never arrived, the delivery that missed three dates, the repair that made the fault worse — and a statement of what you want done about it. It matters because ombudsman schemes, card chargeback rules and small claims processes almost all expect you to have complained to the provider first, in writing, on a date you can prove.
Customers use it after a tradesperson fails to turn up, a broadband line stays dead for a fortnight, a removal firm damages furniture, a wedding supplier does not deliver what was booked, or a garage returns a car with the same fault it went in with. Businesses use the same letter against suppliers: a cleaning contract not performed, a training day cancelled at short notice, a courier that lost a pallet. The common thread is a service that was paid for, or contracted for, and did not happen as described.
What you can demand, and where you go next, depends on where the contract was made. UK services must be carried out with reasonable care and skill under the Consumer Rights Act 2015, and many sectors have an approved ombudsman you can escalate to. India routes complaints through the Consumer Protection Act 2019 and the district commissions, Australia through the consumer guarantees in the Australian Consumer Law, and the US and Canada largely at state and provincial level. Check the escalation route and its deadline before you write.
A complaint letter is not a claim form and not a cancellation. It does not stop the direct debit, it does not pause the contract, and it does not by itself entitle you to withhold payment — doing that can put you in breach while the dispute is still open. It also does not extend any time limit for taking the matter further; the clock set by an ombudsman scheme or by court rules runs whatever the provider says in reply. Use it to create the record and the deadline, then escalate.
What to put in a Complaint Letter About Poor Service
These are the details this template asks for. Anything left blank is marked in red on the preview so you can see what is still missing.
| Field | What goes in it |
|---|---|
| Company | For example: Kinnear Energy |
| Organisation address | For example: 1420 Kinnear Road, Columbus, OH 43212 |
| Account reference | For example: KE-4471889 |
| What went wrong | For example: The engineer failed to attend on 2 September and again on 9 September, both times after I… |
| The effect on you optional | For example: Two days of lost pay, and the boiler is still not working with a child in the house. |
| What you want them to do | For example: attend within five working days and compensate me for the two days of lost pay |
| Response wanted within (days) | For example: 14 |
| Issued to (full name) | For example: James Whitfield |
| Their address | For example: 588 Kinnear Road, Columbus, OH 43212 |
How to write a Complaint Letter About Poor Service
Identify the contract and the account
Open with the reference the provider files by: account number, booking reference, job number, policy number, order number, the site address and the date the service was due. If an engineer or driver attended, name them and give the visit date. A complaint that arrives without a reference sits in a queue while somebody works out which customer it belongs to.
Set out what was promised, then what happened
Write the promise in the provider's own words — the quoted arrival window, the service level in the contract, the delivery date on the confirmation email — and then give a dated sequence of what actually occurred. Dates and times do the work here. ‘You confirmed a 9am to 1pm slot on 14 March; nobody attended and no call was made’ beats ‘your service has been appalling’.
Put a number on the loss
List what the failure cost you and what proves it: the day of unpaid leave taken for the missed appointment, the £180 paid to a second contractor, the replacement travel, the food spoiled when the fridge was not repaired. Attach copies, not originals, and reference each one in the text. A number with a receipt behind it is negotiable; a general sense of inconvenience is not.
Ask for one specific remedy
Say what you want, once, and make it something the person reading can authorise: a refund of the £240 call-out fee, re-attendance by a named date, repair at no charge, or release from the remaining contract term. Ranking a first choice and an acceptable alternative works better than a list of six demands, which invites a reply that answers none of them.
Give a deadline and name the next step
Close with a date by which you expect a reply — fourteen days is a common allowance — and say what you will do if it passes: refer the matter to the named ombudsman or ADR scheme, contact your card issuer about a chargeback, or begin a small claim. Send it by a method that produces proof of delivery, and keep a copy of what you sent.
Common mistakes
- Writing the letter as a narrative of how angry you are rather than a dated sequence of events, so the person handling it cannot see what to check or when it went wrong.
- Sending it to a general customer service inbox when the contract names a complaints address, which restarts the clock when you eventually try to escalate.
- Demanding compensation without saying what for, so the provider offers a goodwill gesture of a few pounds and treats the complaint as settled.
- Cancelling the payment before the dispute is resolved, which puts you in arrears and hands the provider a reason to refuse the claim.
- Keeping no proof of posting or sending, so a provider that says it never received the letter cannot be contradicted.
Frequently asked questions
How do I write a complaint letter about poor service?
Open with the account or booking reference and the date the service was due. Set out what was promised and then a dated list of what happened. Quantify what it cost you and attach the receipts. Ask for one specific remedy, give a reply deadline, and say where you will take the matter if the deadline passes. Keep it under a page and keep proof of sending.
Should I complain by email or by post?
Email is faster and timestamps itself, which is usually enough. Post matters when the contract names a complaints address, when the sum is large, or when you expect to escalate later — a signed-for letter gives you a delivery record no support system can lose. Many people do both: send the email, then post the same letter and note in the email that you have.
How long should I give a company to respond?
Fourteen days is the usual allowance and is long enough to be reasonable. Some sectors set their own limits: regulated schemes often let a provider take several weeks before you may escalate to an ombudsman, and the exact figure depends on the scheme and the country. Check your provider's complaints procedure and the scheme's rules, then set your deadline to match rather than guess.
Can I claim for my time and inconvenience?
You can ask. What you actually recover depends on the contract, the sector's rules and the law where the contract was made, and it differs between a regulated utility with fixed compensation payments and a private tradesperson. Put down the concrete losses first — lost pay, replacement services, wasted travel — because those are evidenced. Treat anything for inconvenience as a separate, clearly labelled request.
What if the company ignores my complaint letter?
Do what you said you would do in the letter, on the date you said. That usually means escalating to the sector's ombudsman or ADR scheme, raising a chargeback or card issuer claim where that applies, or starting a small claim. Every route asks for evidence that you complained first, so the copy of your letter and the proof of sending become the entry ticket.
This page explains general practice and is not legal advice. Requirements differ between countries and, in some cases, between states — check what applies where the document will be used.