Per my last email, the report was due Friday. I'm sure you're very busy, but I'd appreciate it if you could prioritize this at some point this week. Thanks in advance.

Overall tone: Slightly demanding; the message may come off as a reminder that implies frustration over the delay.

Watch out for:

• "Per my last email" - This phrase can sound condescending, as it suggests the recipient should already be aware of the information.
• "I'm sure you're very busy" - While it seems empathetic, it can also imply that the recipient's busyness is an excuse for not completing the task.
• "I'd appreciate it if you could prioritize this" - This can be interpreted as a demand rather than a request, suggesting that the sender feels the recipient has not been prioritizing their work.

Works well:

• "Thanks in advance" - This is polite and expresses gratitude, which can soften the overall message.