Problem changing primary email address on Apple ID account
Hello. I need to change my primary email address on my Apple ID account. It is currently a business domain. My Apple ID is my me.com email address. I want to change my primary email address to my me.com email address, however every time I click to change the primary email address and enter my me.com email, I get: This email address is not available for use as a new Apple ID.
This makes no sense to me. Why is this and how do I fix it?