Microsoft Xbox is refusing to refund an accidental purchase

Firstly, I bought Battlefield 2042 (i know) for my friend so we could play together from his xbox s and my pc. However, I accidentally bought him the “old” noncrossplay version. I have been put through with customer support over the phone now 4 times, submitted several tickets only for them to tell me THEY CAN’T REFUND THIS ACCIDENTAL PURCHASE. I swear to never buy anything from their shitty store again, even because I bought the correct version for my friend and they don’t give a FUCK I made a mistake on their STORE. I am so angry, any tips?