iphone 13 swollen battery

I know, I was just looking for advice or if anyone had gone through anything similar.

I’ve been in touch with apple already and they just said to wait until I hear back from the apple authorised repair service, which should hopefully be tomorrow as EE do a 24 hour repair. I just hope there is some way to claim my money back if I have to pay or for the £70 I’ve already paid if it’s covered by warranty. I know it has apples limited warranty which covers hardware so hopefully I’ll be able to get somewhere with it. There is no damage at all on the phone, even EE have noted on their forms that the phone is in good condition with no scratches or dents.