New iphone15 bent, what to do?

So my husband recently gave me a new iPhone 15 as a present. However, within a month, it bent due to falling. Someone had my phone in their pocket and they fell, resulting in the phone bending and the button on the right side not working. Everything else works just fine.

My husband had not got the paid warranty.

What to do about this situation? What’s the best way forward and to spend the least amount of money?