OK. There is no such thing as "current" Apple ID - unless you mean that it is the one of the two Apple IDs that you describe as your "preferred" Apple ID.
Apple IDs never go away, but they can slide into oblivion without being used.
When attempting to change your email address, what all that stuff is telling you is that you cannot use your 'right' email address for BOTH Apple IDs as the Primary email address. Neither can you use the 'wrong' email address for both.
An email address is a unique identifier WORLDWIDE = nobody on Earth can have the same one as you.
Neither can you COMBINE "kohls" ASC activity into your "other" Apple ID.
Do you want to resolve this? If so, you need to get another email address that WORKS from Yahoo or Gmail or Outlook and set it up in your Mail client to make sure it works right > THEN change your "kohls" Primary to the NEW email = Voila! email notices from ASC!
Many folks (including me) have more than one Apple ID. ChitlinsCC is the one I use exclusively for ASC - no purchases etc. -- I have seen one member claim to have 100s (not sure I believe it though)
Rather than me guessing, why don't you state exactly what your GOAL is, rather than asking about how to do something that may or may not be attainable?
We are pretty good at problem solving, but some things just cannot be done - even by Apple.