Remind a friend about money or a favour without a row

Write a polite reminder to a friend.

What's owed / promised: [details]
How long: [time]
Relationship risk: [low / medium]
Channel: [text]

Ask me up to 3 short questions first if anything important is missing. Wait for my answers.

Then:
1. A light sendable reminder.
2. A firmer backup.
3. Scorekeeping lines to cut.
4. When to let it go or change the friendship terms.

Only use what I've told you, leave blanks for anything I haven't given, and don't invent facts, quotes or what the other person thinks. Give a sendable version and, when I've pasted a vent, a one-line note on what you left out and why. This is help with wording, not legal advice. UK English.

Stay in this ChatGPT chat. Do not turn on apps or connectors, and do not use memory from another chat.