Have been selling rare, mainly bulky items for my father. Some are still currently listed. On all the heavy/bulky ones.. i have put in bold letters, Post UK only. On some listings it mentions this at least twice! On about 80% of my dad's stuff..I am still getting overseas bidders / winners! So I will honour it as long as they pay for trackable post.. it's their call... they didn't have to bid, it does say UK only. I will not send by less than trackable. So far , winners have been fine about it. But..there's more to come and right now one of the items is really pretty bulky and very very collectable. If winner refuses to pay for trackable (or insurance if needed..still not sure what i'll get for item), and just wants normal airmail, can i refuse to send, and offer to the next person (if that person is UK)? Could that original winner then leave me bad feedback and would i have any comeback on that seeing as my listing states UK..and they are not..