Are you able to cancel the auction?? If people aren't seeing your comment on here, they may keep bidding and sucking up their credits on something that isn't available anymore, that they could use on something else, rather than figuring it out later, and having to go through asking for credits back, etc.
The seller is capable of submitting a support ticket to have the auction removed- I did it when my sister took a dress that I listed! Sometimes you can't help life, but it's perfectly reasonable to expect them to put the effort into removing the auction...or refunding credits immediately to winner
And then, as high bidder, they will give my credits to you and if I have to go through all that to get them back, I will be mad and your feedback may suffer!!!!