I have an old Apple ID I've been trying to get rid off. But again and again, I'm being prompted by iOS to use it in place of my new one. What is worse, I purchased some prescriptions for iOS apps with the old ID, and would like to transfer them to the new ID. Finally, the email address that is the old ID is going to become defunct in one week, and I simply want to get rid of it! The best would be to transfer everything associated with the old ID to the new one, or rather merge them. But Apple won't let me do this. What can I do?