Hi everyone,
One advise to share - make sure you provide a valid contact email address when signing up for AdWords API, and regularly track emails sent to that account. I've been hearing from the review team that some of the cases I forward from the forum are ones where the review team wrote back to the developer 2-3 weeks earlier, but the developers never responded to. Note that the email address you provide as your Company Email is the primary way for us to contact you with any questions we have.
If you haven't provided a valid contact email address or wish to update it, you may do it by logging into your AdWords API MCC account, navigating to My Account->AdWords API Center. Click the "Edit" link next to "Company Information" and update the "Company Email" field. Click the "Save" button to update your developer details.
Some additional things to keep in mind:
1) When you click "Edit" link, the "Tell us how you would like to use the Adwords API" box will appear empty. No need to type anything here, your previous entry will be populated when you click the Save button.
2) If you already have an approved token, then updating the developer information will not cause your tokens to stop working.