Account for the relationship as it is now
Use a tone that fits the present relationship, not the closeness, authority, or access that existed in the past. For a message about how to ask someone to return your keys, use this factual base: identify the content, account, place, person, channel, access, or behavior that must stop.
Ask without assigning an obligation
Explain what you hope for while making decline, delay, or a different format genuinely acceptable. Give the required action, any lawful deadline, and the one permitted route for necessary matters. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Keep the ending honest
Do not debate the boundary repeatedly or threaten consequences you are not entitled to use. Save evidence, secure accounts, reduce access, and contact platform, workplace, legal, or emergency support when risk continues. Avoid future promises, guilt, flattery, or nostalgia that imply the recipient owes you access.