If you are having problems getting approved, you are allowed to hire a company to help you as noted here:
8. Can I hire someone to help me meet the requirements described in the Data Protection Policy?
Yes. The AWS Partner Network is a resource that might be of assistance.
There are service providers who are approved for MWS. You can work through existing service providers to get access to your Amazon data.
If you want to get into specifics, you can send me a private message on this forum.
Dynamic Enterprise Technologies Inc
Seattle Washington USA