So sorry this happened.

I've bought from them often and they also ship purchases that way -- I bought a K28 from them and it came wrapped in nothing, not even their fugly dustbag, it was just thrown into a box during winter (so rain on the box). They are horrible, no doubt. The fact that
Fashionphile rejected it and TRR damaged it further, and it already had damage issues -- it's a sunk cost, lost value at this point. Don't invest in it further unless you do a (low cost) repair for yourself to keep it or have the courage to visit Hermes directly and have them repair it. Tbh I don't think an Hermes repair would increase its value or desirability to a buyer. Personally, I would just offload it for what you can and take the loss and lesson learned.