• Reply only: the reviewer missed something that already exists. Show where, with a recording.
• Fix and resubmit: the reviewer is right. Most rejections end here, and it is the fastest path.
• Appeal: you replied with proof, the reviewer repeated the same message, and you are sure the guideline does not apply. Apple has an App Review Board form; Play has an appeal link in the policy e-mail.
• Expedited review (Apple): only for a critical bug fix or a time-bound event. Using it for routine updates wastes it.