Strong answer
Unify the technical path and relationship path into one update cadence.
- Align Support and CS on one customer-facing update instead of parallel messages.
- Translate the log request into business-impact language the sponsor can understand.
- Name the next checkpoint, owner, and what will be known by then.
- Keep Support as technical owner while CS owns executive expectation-setting.
- Escalate internally only if the customer dependency or engineering path stalls.