Are you able to RMA the board at all? it looks like a bit of a scam to me...
I've no experience with bent pins but to me they look to have just been bent straight backwards and are probably easily bent back. I'd probably ask him to return it and say you'll give him a refund once you've inspected it, the trouble is if you can't RMA it you could end up out of pocket. IMO there's no way that can happen in transit especially when you have the plastic cover attached. I reckon he's just bent the 2 pins back took a photo and is now trying to pull a fast one.
I've no experience with bent pins but to me they look to have just been bent straight backwards and are probably easily bent back. I'd probably ask him to return it and say you'll give him a refund once you've inspected it, the trouble is if you can't RMA it you could end up out of pocket. IMO there's no way that can happen in transit especially when you have the plastic cover attached. I reckon he's just bent the 2 pins back took a photo and is now trying to pull a fast one.