Q: I have some apps that won't recognize my Apple ID, even tho it is correct.  Not sure what to do.

My apps wont recognize my Apple ID.  I had a problem because I was using 2 different emails for apps...didn't know I couldn't.  So then I created the same password for both to capture everything.  Updated my software (that was part of the problem).  Apps have been updated now, but I cannot make In-app purchases because the Apple ID won't work.  I really don't know what I'm doing wrong.  Any advice??