Currently Being ModeratedSep 28, 2013 12:05 PM (in response to Abbas unlocking)
Contact Apple > Contacting Apple for support and service
Currently Being ModeratedSep 28, 2013 1:49 PM (in response to Abbas unlocking)
Firstly, if you have 'Find My iPhone/iPad/iMac' enabled on any of your devices, turn it off.
Create a new email address at Yahoo or Gmail. Go to http://appleid.apple.com and click 'Manage your Apple ID'. Sign in with the current Yahoo ID.
Where it says 'Apple ID and primary email address' and gives your Yahoo email, click 'edit'.
Enter your new address and click 'Save changes'.
Now you will need to go to each of your devices and sign out in System Preferences (or Settings)>iCloud - 'Sign out' on a Mac, 'Delete this account' on an iOS device (this will not delete the account from the server).
Then sign back in with your new ID. Your iCloud data will disappear from your devices when you sign out, but reappear when you sign back in.
I re-iterate: before you start, turn off 'Find My Mac' (or whatever) or you will need the services of Support.