Tried again this morning... Apparently, I have to wait for 24 hrs before bidding.. Negotiation on Hold: Duplicate Offer Detected We're sorry, but your bid is identical to another offer you submitted in the past 24 hours. Your credit card has not been charged. If you wish to submit a new rental car offer for the same location, car type, and pick-up and drop-off date & time, please wait 24 hours. If you would like to Name Your Own Price