If you used your debit/check card to make payment for your order AND your transaction failed because of an invalid address or security code, then the charge may still appear in you bank account for a few days. This is because debit/check cards are processed differently from regular credit cards and each transaction (including failed ones) places a pending charge on your account. This pending charge after a failed transaction will eventually be reversed. Depending on the bank, it may take from 2 to 10 days for these pending charges to disappear.
Unfortunately, this pending charge is determined by your bank and there is nothing we can do to influence these policies. You are encouraged to contact your bank directly to confirm their authorization hold policy and procedure for failed transactions.
Your bank will most likely tell you that these transactions are valid. However, wait for few days and these will automatically disappear from your account. If these transactions are still listed after 5 days, feel free to contact us so we can investigate it further.