I used to have an Amazon.com account under my@email.com.

When Amazon arrived to my country, I was encouraged to migrate, but Amazon.mc didn't have the same selection.

After a while I wanted to buy a laptop from Amazon.mc and registered under a phone number.

Last week my music keyboard broke and I wanted to buy a digital piano from Amazon.mc but they insisted now that I register an email address. And then my email address is already in use.