I am facing a problem while opening an Amazon AE seller account

The session suddenly closed midway during registration. Later I logged in again and completed the registration, but the verification was rejected.

When I contacted Amazon AE and Amazon USA support, both of them said that my account registration was not completed completely. Now the account is stuck in incomplete status, so I am not able to complete the verification.

Has anyone faced such a problem or know the solution?

It would be very helpful if you could tell me how to fix stuck registration.