I am bidding on a car the auction is not over but the seller has relisted the car

[momcqueen]

It's possible the seller has more than one of the same item and has chosen to put another to auction while the first sells. 

[femmefan1946]

Contact the seller and ask.

If he doesn't have a reasonable response, cancel your bid.

The reasons for cancellation are few, but choose one that seems closest .