[2023] I bought rainbow 6 on my new account but it’s saying i bought it on my old account

I purchased R6 on my new account and it says that i purchased it on my old account which I don’t have access to its email. When I look at the transaction history on my old account it says it’s there. When I pressed play now it asked me for a code which i didn’t get in my email or my receipt. Now when I look at the game on my old account it says “add to cart” I have receipts and everything and I don’t know what to do anymore I can’t get this 20 dollars back