How do I delete this email address in iTunes and add the correct email and password? iPhone 6
You look at the purchases history for your current Apple ID and then compare what shows there against what is installed on your device/computer. It can be a slow, cumbersome process. If you wait until an app needs an update and then check, it may eventually get rid of the apps associate with another ID.
A request for another Apple ID password is often caused by updates to apps/purchases that were made when using the other ID. Those purchases are tied to the other ID and can't be transferred. One option is to delete the apps/purchases made by the other ID and download them using the new ID if desired. If necessary, check your purchases history to see which apps/purchases weren’t made by the current ID.
getting wrong email address
Did you read my post above your post?
When reload apps will they still be at levels they were (games, etc?)
Probably not because the data is associated with the other ID.
How do you check purchases history to see which apps/purchases weren’t made by the current ID.
Every time I try to update apps in iTunes Store it shows the wrong email address under my ID
