Activation lock problem
hello guys. im having trouble with the activation lock because every time i log in my account it says "email@yahoo.com" cannot be used to unlock this iPhone. and my account is not linked to find my iphone so im stuck in the activation lock. i dont know what to do. i really need your help guys. i only have one account.
IMEI: 01 343100 402129 3
ICCID: 8963 0314 1612 7131 3420
iPhone5 iOS 8.4.1
iPhone 5, iOS 8.4.1