An outstanding authorization is when a merchant places a hold on a certain amount of funds on your card to verify that you have sufficient funds to pay for the transaction.
Some merchants' agreements with MasterCard allow them to pre-authorize smaller or larger amounts than the expected transaction.

If the amount pre-authorized is bigger than the actual transaction amount, the remaining funds may be held for several days before being released back to your available balance (the number of days depends on the merchant type).
Please note that gas stations often perform pre-authorization holds for larger amounts than the actual sale amount.

In the case of a rejected payment, the balance from the outstanding authorization is released within 7 days.

If you can provide us with written confirmation from the merchant, indicating that they will not be settling the transaction, we will forward the confirmation to our financial department with a request to cancel the outstanding authorization. Please scan the merchant's confirmation and email it back to us, or fax it to 1-347-438-3365.

Nikola: ты 150 бат от тайских банков и 3% от пионеров прибавил к сумме?

мда, пионер долбоебы по-моему, убегут от них все скоро.