iphone X
an old itunes account keeps popping up and asking for the password. I don't know the password and i want to delete this. How do I do this?
iPhone X, iOS 11.2.6
Check the App Store and iTunes Store to see if there are any updates for apps/purchases. A request for an old Apple ID password is often caused by updates to apps/purchases that were made when using the old ID. Those purchases are tied to the old ID and can't be transferred. One option is to delete the apps/purchases made by the old ID and download them using the new ID if desired.
If necessary, contact iTunes Support. Scroll to the bottom of the page in the 2nd link.