Rebuild the missing context
Assume the recipient will not remember every date, promise, or earlier conversation. For a message about how to report an online impersonation account, use this factual base: identify the content, account, place, person, channel, access, or behavior that must stop.
Say what needs to happen next
State the decision, information, or practical action you need and include a real deadline only when one exists. 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.
Avoid making urgency into pressure
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. Do not make the other person responsible for reducing the discomfort that prompted you to write.