Q: If I forgot the answers to my security questions, what do I do?

The Three Best Alternatives for Security Questions and Rescue Mail

     1.  Send Apple an email request at: Apple - Support - iTunes Store - Contact Us.

     2.  Call Apple Support in your country: Customer Service: Contact Apple support.

     3.  Rescue email address and how to reset Apple ID security questions.

A substitute for using the security questions is to use 2-step verification:

Two-step verification FAQ Get answers to frequently asked questions about two-step verification for Apple ID.