How to export analytic data from iTunes Connect

Since you have shipping apps in the store, you will be able to call developer relations and begin the process to get things reset.

https://developer.apple.com/contact/ and https://developer.apple.com/contact/phone.php

Even consumer Apple ID have the ability to set a separate email address for emails about resetting the security questions and emailing administrative changes, so the account in question might very well be set up in that manner.

While you are on the line, you can ask about setting up multiple accounts for your business so that several people are listed to do certain tasks for you.

Either uploading a new binary update or rejecting the App's actual binary and then pressing on Ready to Upload Binary should do the trick.

As written under Apple's iTunes Connect Guide:

Cryptography and U.S. Export Compliance

U.S. export laws require that products containing encryption be properly authorized for export. When you’re ready to upload your first binary for your app or upload a binary update, iTunes Connect presents a series of questions regarding software encryption. The questions are designed to determine the level of encryption in the app according to U.S. Bureau of Industry and Security (BIS) classifications.