Clarify the agreement that existed
Identify the promise, policy, schedule, ownership, or shared understanding that applies before assigning blame. For a message about how to ask someone to witness a valid signature, use this factual base: state the item, task, route, date, duration, responsibility, and any expense or risk involved.
Resolve the next dependency
State what is complete, what remains disputed, and which action would move the situation forward. Make a direct request, offer the information needed to decide, and confirm the return or completion plan. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Document without threatening
Do not call the favor small when it costs time, money, access, or professional reputation. Do not ask someone to break a rule, share credentials, sign falsely, transport unsafe items, or assume legal responsibility unknowingly. Keep a factual record and describe only remedies you are entitled and prepared to use.