# W5 | deepseek/deepseek-v4-pro | run 2

## Prompt

Write an apology email to a client. We missed the agreed delivery date by a week due to an internal mistake (not their fault); the client is frustrated. Be sincere, take responsibility, offer a concrete next step, don't grovel. Under 130 words.

## Response

Subject: Our sincere apology — and your revised delivery date

Dear [Client Name],

I’m writing to take full responsibility for missing the delivery date we agreed upon. The delay was caused by an internal error on our side — there was no fault on yours — and I understand your frustration.

We’ve since corrected the issue and implemented additional checks to prevent this from recurring. Your complete delivery is now confirmed for [specific date], and I’ll personally confirm when it’s in your hands on that day.

If you’d like to discuss this further or have immediate questions, please reply here or call me at [phone number].

Respectfully,
[Your Name]

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Would you like me to adjust the tone or adapt this for a specific industry?
