Bought AC on wrong account

My Microsoft store account was apparently on a different account. I bought ac and didn't see anything so tried again thinking it didn't go through. Later found out both went to wrong account. Microsoft would only refund 1. So now I'm out $30 and won't ever spend money on the game again unless its fixed.

Literally the same thing just happened to me, I hate how confusing this game is and why it had to be done through microsoft but it makes everything so much worse.