eBay and Craigslist finds

Strange one which I have not experienced on ebay before. Won a krpyto lock for 13.47 and the seller messages me after its done to say he wants to cancel the sale because quote '
I'm unprepared to sell the lock at such a low price. Sorry for wasting you time'. Luckily I havnt paid with paypal yet, but what the fuck, surely set a reserve price then. what now?

My father ended up buying an oven for 99p when he refused to back down with the seller in a situation similar to this. didn't get any help lifting it into the car when he went to pick it up though.