How to delete an iCloud account and turnoff Find my Phone for a email address that does not exist

Question

I have switched my itunes account to a new email address but the iCloud account is still registered to the old email account which I can no longer access.
If I go to Settings>iCloud it requests my Apple ID password for the old email account but as this account does not exsist it does not accept the "old" password. it will not let me delete the account without turning off the Find My Phone app which aslo needs the old password.
A related probelm is none of my apps will update as they are on the old account hence the need to delete the iCloud email account and create the new iCloud with the new email sign on address.

Answer 1

If the old ID is an earlier version of your current ID, temporarily recreate the old ID by going to https://appleid.apple.com, click Manage my Apple ID and sign in with your current iCloud ID.  Click edit next to the primary email account, change it back to your old email address (you won't need to verify it) and save the change.  You should now be able to use your current password to turn off Find My iPhone, even though it prompts you for the password for your old account ID.  After turning it off you can delete the account, go back change your ID back to the way it was again.