For optimal security, when an order is submitted an authorization request is sent to the issuing bank. The issuing bank then verifies billing information, the validity of the credit card, and the availability of funds. If the card information is valid and the funds are available, the bank puts an authorization hold on the funds. An authorization is only a hold on the funds for a possible future transfer of funds.
When an order is placed, two transactions will post to your account: 1) an authorization hold which holds the funds for the pending charge, and 2) a charge for the order which removes the funds from the account.
If an order is cancelled, the authorization hold will be removed from the account by the issuing bank. Please contact the issuing bank for inquiries related to the removal of authorization holds.