# W5 | deepseek/deepseek-v4-pro | run 1

## 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: Apology and delivery update – [Project Name]

Dear [Client Name],

I’m writing to apologize sincerely for missing the delivery date by a week. This was entirely due to an internal mistake on our end, and I take full responsibility.

I understand your frustration. We’ve identified and corrected the root cause, and we are prioritizing your project above all else. I’ll personally oversee the final stages and ensure delivery by [new, specific date and time].

Please let me know if a brief call would help address any remaining concerns.

Best regards,
[Your Name]
