The OP's phone looks pretty beat up to have been in a case since launch day. That damage looks like what would happen outside the case.
It’s not beat up at all. That photo was taken hurriedly while I was on the phone to Apple. It’s close up so every speck of dust shows up. I can post a clearer photo if you're suspicious that it’s “beat up”.
I think Apple stocks extra phones for exchanges, I know this technically wouldn’t be an exchange but if Apple is involved, they should be able to make an exception. Do you have any stores near you that you can go into?
I think you’re right but sadly they can’t help because it’s a change of phone colour. They’re just saying they’ll extend the return period to 30 days to allow me to hunt for a replacement.