What?!

I had a couple of retired @me.com accounts and was trying to check if I deleted any old backups then I proceed to sign in with my main @gmail.com apple ID and I get "cannot sign in the maximum number of free accounts have been activated on this iphone".
EDIT: The @me accounts were created on a MacBook Pro that has been long since retired so wtf is this...brand new iPhone factory unlocked, not jailbroken...what is this?
I had a couple of retired @me.com accounts and was trying to check if I deleted any old backups then I proceed to sign in with my main @gmail.com apple ID and I get "cannot sign in the maximum number of free accounts have been activated on this iphone".
EDIT: The @me accounts were created on a MacBook Pro that has been long since retired so wtf is this...brand new iPhone factory unlocked, not jailbroken...what is this?