#0 - May 15, 2009, 7:09 p.m.
One primary concern is whether or not certain debit cards will be able to make a purchase. The system being used for the BlizzCon ticket sale is slightly different than the one used for the BlizzCon store, or for World of Warcraft subscriptions. That said, as long as the debit card can pass full authorization to our standards like a credit card, and it has the balance available, it *should* work for placing BlizzCon ticket orders. As always, some exceptions apply.
If you are concerned about your own card, we strongly advise contacting your banking institution before attempting to make your purchase, to discuss any possible restrictions that may apply to your card or in any way hinder our attempt to authorize the card. Some institutions will not fully process a large transaction if they believe there may be fraudulent charges being applied. If the bank declines the card, our system cannot retry the same transaction, and the customer would have to try again.
If a card fails to authorize, and that card is retried multiple times, it can result in mutliple temporary charges showing against the account balance. These temporary "held funds" look like duplicate charges, but get released after a certain period (can be days or weeks, depending on the banking institution). If a card can't fully pass validation to get the order placed, please be wary of accumulating X number of $125+ transactions that can temporarily “hold funds” against your card limit.