Our payment gateway may verify a new credit card by processing a $1 authorisation and then automatically voiding it. For most processors, transactions are initially tried with a $0 authorisation. If $0 authorisations are not supported, a $1 authorisation will be performed automatically. In any instance where a $1.00 authorisation returns a successful result, we immediately follow up with an automatic void request to ensure that the transaction does not settle and that it disappears from the cardholder’s statement as soon as possible.
Note: Some banks don’t recognise void requests immediately. It’s possible that after the void is issued, your customer will still see the pending charge. If this happens, have your customer call their bank; the bank should be able to see the void request and update your customer’s bank statement accordingly.