My @me.com was given to someone with the same username @gmail.com
My old iCloud email (used with an iPhone 4) ending with @me.com was given to someone with the same username @gmail.com, so I cannot change or delete the iCloud account on one of my old iPhone. When I try to change my password I am asked to verify a phone number that is not mine, but belongs to the phone of the username@gmail.com - I noticed in earlier community messages that previous @me.com account names where associated with @gmail.com accounts, but someone already had my username (matching @me.com) in gmail.
Earlier iPhone models