I know with Ebay after a certain amount of days (45?) you are out of luck. I have an Amazon order that is going on a few months now, it was suppose to arrive May 3rd but often times it goes a month over so I tend to give more time to give the seller benefit of doubt, but I'm just wondering how long I have if there is a limit, before I file a claim. I sent the seller a message and didn't get a response. I'm not in a hurry to get the item but I don't want to wait too long and then not be able to get money back, either.