We generally get to every production request within a few business days. When your app is reviewed, you'll receive an email indicating either that it was approved, or why it wasn't. Please make sure the email address registered on the account that owns the app is correct and can receive email. Please also check your spam folder for any responses that may have been filtered.
If you can't find the response, feel free to open a ticket here and we'll look it up for you:
https
/www.dropbox.com/developers/contact