Strong answer
Acknowledge impact, control commitments, and create an owner cadence.
- Open with the customer's business impact, not the technical classification.
- Give the workaround with ownership, limits, and a next checkpoint.
- Escalate internally with commercial context, renewal timing, and the commitment boundary.
- Avoid public patch dates until Engineering approves the language.
- Rewrite the draft so Support owns technical facts and CS owns expectation-setting.