I bought clothes online which were damaged and the seller refunded me everything including the return postage as thats what a reputable seller would do its nothing to do with me that the item was damaged so why should I be the one whos losing out.
If it was already there why did they still try to remove it surely they would contact you about it? It can be weld dont no how long it would last or you could get the head swapped but that may cost a bit with the gasket and headbolts