Beware bidding on auction items! I won a bid on a dog car hammock for the backseat of my car. $20.00 bid. I am being charged $21.96 for SHIPPING!! This is not a heavy item. I will not be bidding again on a Sam's auction. I called and was told I only had an hour to cancel it. Now I must wait until it arrives and then ship it back. Not happy, Sam's Club.