It is possible to share a bidder number and whichever guest has the credit card on file will be designated as the Primary bidder. However, a bidder number is associated with only one email login so any time a second person logs in with that email, it will disconnect the first bidder. As an alternative, we recommend that everyone get their own bidder number using their own email address, place a credit card on file, and check out individually. The same credit card may be placed on file for multiple bidder numbers.