The time can vary depending on circumstances. It can take more than a month. Some companies I have been in touch with recently were able to get a Developer ID approved for their own account in about 1.5 months.
Are you applying for MWS access to your own account only, or are you applying to provide a MWS service to other sellers?
As the process is supposed to take a month, and you have been waiting for more than that, I recommend you post a kind worded message like “Please let me know how long my application is expected to take.” OR “Please give me an update on the status of my application”. I recommend not posting on the case asking for status more than once a month.
Dynamic Enterprise Technologies Inc
Seattle Washington USA