We'd been porkchop415 on ebay since we joined, and our email has always been porkchop415@whatever domain...

Went into our ebay account and changed our email to porkchop415@different domain...and it wouldn't let me finish the change until I changed our ebay user name or email address, because the user name was the same as our email address . Now we're porkchop4150 on ebay...