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 reconnect with a former recruiter, use this factual base: remind the person where you worked together, when, and what current topic makes the contact relevant.
Resolve the next dependency
State what is complete, what remains disputed, and which action would move the situation forward. Make one modest request and give enough information for them to decline or redirect it. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Document without threatening
Do not imply endorsement, exploit a former hierarchy, or send confidential material from the old relationship. Use official business, privacy, conflict, and procurement rules when commercial or regulated information is involved. Keep a factual record and describe only remedies you are entitled and prepared to use.