I dealt with CS over the phone for the new 26r bowl.
No pictures/questions asked. It was an AT and I mentioned bad leg socket welds.
She told me there was no such thing like that. 3 days later I had a new 26r bowl at my house.
I would guess it all depends on part and CS rep you get when you call.
If something isn't right and still under warranty, I'd call.
Worst thing they could say is no.