Refund from Temu application how do I get my money back into my Apple Cash account

I ordered items off The Temu application I accidentally purchased the wrong items the transaction was completed through my Apple pay I canceled the whole transaction Temu said they already issued my refund for all the items the funds are still not back in my Apple Pay account what steps do I need to take in getting funds back or even credit with Temu so I can ordering the correct items