Metadata Rejection; Guideline 2.1 - Information Needed
Submit a New Binary

You have the following options:


Submit a new binary for review with the corrected meta-data;
Wait for the appeal; this could take a week or more;
Contact Apple Developer directly and ask for an update.


Anecdotally, submitting a new binary for review tends to be the fastest approach.

Given the application was rejected for a valid reason you agree with, there is nothing to appeal. The appeal can only fail. Resubmit the application with the corrected In-App Purchase meta-data.