My Apple ID for iTunes and iCloud in the iPad are different.
I have an iPad which was purchased in the USA.
When it was purchased, my Apple ID was originally created in conjunction with an iPhone and iPad.
As such, the Apple ID was created based upon a superseded email address, that is no longer active.
I also do not remember the password for the previous Apple ID.
Upon relocation to Korea, the iPhone was replaced by the Galaxy phone.
The iPad is currently being used with a new email address.
As a result, my Apple ID for iTunes in the iPad shows the latest primary email address.
However, my Apple ID for iCloud in the iPad still indicates the superseded email address.
How can I maintain one Apple ID for both iTunes and iCloud?
iPad, iOS 8.2