Name the impact without exaggerating it
Describe who had to wait, worry, redo work, spend money, or make a choice with incomplete information. For a message about how to correct a misleading screenshot, use this factual base: state the claim, where it appeared, what can be verified, and who actually needs the correction.
Make repair practical
Offer the repair you can actually complete, with ownership, timing, and any limit stated honestly. Ask for a correction, removal, or direct conversation and keep an accurate written record. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Let future behavior carry the proof
Do not publish private evidence, speculate about motive, or recruit an audience to punish someone. Use school, workplace, platform, legal, or police channels for threats, defamation risk, intimate material, or impersonation. A promise inside a message is weaker than a visible change in what you do after it.