If nothing was unclear or difficult, say so. Skip questions about steps you did not experience; use not applicable where appropriate.

What changed from your original expectation?
Which approval step was unclear?
What written explanation would help?

Author notes / illustrative keys where applicable:
1. The change from the original expectation identifies the specific task or consequence that needs clarification. Preserve the stated difference without treating a response as authorization.
2. An unclear approval step identifies where a proposed scope change lacks a stated decision owner or confirmation route. Explain the actual process and boundaries, without treating discussion of a change as authorization to perform it.
3. A useful written explanation identifies what customers need to understand about changed work, timing or approved cost. Confirm the actual scope before asking for agreement.