Usually, when I don't win a bid, it still tells me that I have been outbid or loose the item. Last time I check, there was 5 minutes left for this bid. A couple hours later, I look for it and it's not there anymore. No message about losing it, not appearing in my bidding history or cart either.
I doubt Ebay will take off an auction 5 minutes before an end. And curiously, the seller has sold many other similar items, but at an higher price, though. So, I don't think the ribbon is the problem.
Can a seller stop a auction if the price isn't high enough for him? Can they do that?