Letter to a Client Apologising for a Delay

The question

How to approach this formal letter question

A formal letter goes to someone you do not know, such as a manager or a council. Use a polite, impersonal tone and cover every bullet point.

1. Open with "Dear Sir or Madam," and state your purpose in the first sentence.
2. Give one paragraph per bullet point with specific details.
3. Avoid contractions and slang; use polite requests (I would be grateful if...).
4. Close with "Yours faithfully," and your name.

How to plan this answer

Structure

1. Opening: 'Dear Sir or Madam', then a line stating that you are writing about the delayed marketing report.
2. Paragraph 2: apologise sincerely and explain how the delay has affected the client's plans.
3. Paragraph 3: explain the cause in one or two factual sentences, without making excuses.
4. Paragraph 4: propose a precise new delivery date and describe two concrete steps to prevent the problem happening again.
5. Closing: thank the client for their patience, offer a contact point, and sign off 'Yours faithfully'.

Points to cover

• Impact: the client's launch planning has been pushed back, and their team had to postpone a presentation to the board.
• Cause: a corrupted data file that needed to be collected again, combined with two team members being off sick in the same week.
• Responsibility: state that your company should have informed the client sooner, which shows ownership rather than excuses.
• New date: a named day, with a draft sent by Wednesday so the client can comment before the final version.
• Prevention: weekly progress updates, a second person checking the data, and a backup plan for staff absence.

Useful vocabulary

• I would like to offer our sincere apologies for: I would like to offer our sincere apologies for the delay in delivering the report.
• has caused you considerable difficulty: I understand that this delay has caused you considerable difficulty.
• This was caused by: This was caused by a problem with our data and by illness among the team.
• we should have informed you sooner: We should have informed you sooner, and I apologise for not doing so.
• I can confirm that the report will be delivered by: I can confirm that the report will be delivered by 14 June.
• to prevent a recurrence: We have introduced new checks to prevent a recurrence of this problem.
• a second-stage check: All data will now go through a second-stage check before it is used.
• contingency arrangements: We have made contingency arrangements in case staff are absent again.
• We appreciate your patience: We appreciate your patience and understanding during this period.

Common mistakes

• Starting with the explanation before the apology, which makes the letter sound defensive.
• Apologising without saying how the delay has affected the client, which is the second bullet point.
• Giving a vague new date such as 'soon' rather than a specific day.
• Describing the prevention steps in general terms, such as 'we will do better', instead of concrete actions.
• Using contractions such as 'we've' or 'it's' in a formal letter to a client.

Examiner tip: Apologise first, state the cause in one factual sentence, then give a precise new date and two concrete steps to prevent a repeat.