- Up for bids one DC THE OFFICIAL BATMAN ADVENT CALENDAR. Calendar is in new condition and is still plastic sealed. Payment is due within 3 days after AUCTION ENDS, I will NOT ACCEPT any INTERNATIONAL BIDS. I will only receive payment thru PAYPAL. Item or items will be mailed out with in 2 days after payment clears using the UNITED STATES POSTAL SERVICE, I only ship within the UNITED STATES OF AMERICA and I WILL NOT MAIL INTERNATIONAL . PLEASE ask questions before bidding as I DO NOT ACCEPT RETURNS or REFUNDS. Thanks for visiting my auction.