Telecom billing dispute

Challenge the charge, not just the total

A bill can be wrong for several different reasons.

Identify the invoice, line item, date and amount. Then explain whether the problem is an incorrect tariff, cancellation date, usage charge, roaming charge, equipment charge, final bill, credit that was not applied or something else. This makes it much harder for the provider to answer only “the bill is correct”.

Editable template

Version 1: first billing dispute

Use this when you are challenging one or more telecom charges with the provider.

How to edit it: replace everything in square brackets with your own details. If a bracketed paragraph does not apply, delete it before sending.

Subject: Formal billing complaint: [account/reference]: bill dated [date]

Dear [provider / complaints team],

Please treat this as a formal complaint about charges on my account.

Account/reference: [reference]
Bill/invoice date: [date]
Amount disputed: £[amount]

Disputed charge 1
Charge shown: [description and amount]
Why I dispute it: [plain-English reason]
Evidence: [contract/order confirmation/cancellation record/usage record/payment/bill]
Correction requested: [remove/recalculate/refund/credit the charge]

Disputed charge 2
[Repeat if needed.]

Please investigate each disputed charge separately and provide a corrected itemised position showing how the balance has been calculated.

[Optional, While the complaint is unresolved, please ensure any collections or credit-reporting activity accurately reflects the fact that the identified amount is disputed, in accordance with the rules and practices that apply to the account.]

I would like you to [specific resolution].

Please provide a written complaint response addressing each charge and the evidence above.

Yours faithfully,
[Your name]

Editable template

Version 2: provider says the charges are correct

Use this after a generic rejection that does not explain the calculation or the evidence behind it.

How to edit it: replace everything in square brackets with your own details. If a bracketed paragraph does not apply, delete it before sending.

Subject: Billing complaint follow-up: calculation and evidence required: [reference]

Dear [provider / complaints team],

Thank you for your response dated [date]. You state that the disputed charge of £[amount] is correct.

My dispute is specifically that:
[state the issue in one sentence]

The evidence I provided is:
[document/date/reference]

Please explain:
1. the contractual or account basis for the charge;
2. the dates, rates, usage or other figures used to calculate it;
3. how you have addressed the evidence I supplied; and
4. the corrected closing balance if any part of my complaint is upheld.

If you maintain the charge, please provide your final complaint position and tell me when I can take the complaint to the relevant ADR scheme, including whether the complaint has already reached deadlock or the applicable waiting period has expired.

Yours faithfully,
[Your name]

Credit reporting

Do not let a billing dispute silently turn into a second dispute.

If the provider reports the account to a CRA, keep copies of the bill, complaint and credit entry. A dispute about liability and a dispute about inaccurate credit reporting may overlap, but they are not identical issues.

Official & related guidance

Check the route that applies to your situation.

Check the linked guidance before sending. Rules, complaint stages and time limits can differ by sector.