We work with a secure, 3rd party company called Stripe to process payments. They send over a request to the issuing bank for either $0 or a $1 authorization to verify that the card is issued and the bank will allow it to be authorized. Regardless of whether or not the authorization is declined, some people may still see an authorization for $1 on their credit card statement. This is not a charge and it will disappear from your statement. Depending on the bank, it will be removed from your statement in anywhere from a few minutes to a few weeks.