habitation door hinge failure

the lower hinge pin on our broadway EB 2019 - has sheared. Under warranty, autosleepers sent a new hinge but our dealers are unable to fit it as the the lower hinge on the door seems to have no screws or bolts holding it to the moho side wall. Instead, it seems that they have to have a whole new replacement door and surround and will have to take out the old hab door and replace it with a new one which will involve heating the seals to release the hab door frame.

Has this happened to anyone else? 
Anyone had problem with their lower hinge on hab door? 
Any tips or thoughts? 
TIA