If your order failed but you're still seeing a charge on your credit or debit card, it is most likely an authorization hold.
Understanding Authorization Holds
When you place a credit card order, an authorization hold is automatically placed on your bank account in order to "save" the amount in case the payment is approved. This is done by your card issuer or bank and ensures that the money is still available when the transaction is completed. If the order is approved, it will disappear immediately, and often you won't even notice it.
Unfortunately, when an order is declined or failed, the authorization hold will occasionally remain for a short period—usually 1-2 business days, but it can vary from bank to bank. During that time the funds held won't be available, and it may appear that the card was charged even though the transaction was declined. Coinmama will never charge your card for a declined transaction.