When a request is placed, we send a $0 authorization to your bank to verify that your card is valid. If the $0 authorization is not supported by your bank, then we’ll attempt a $1 authorization.
The important thing to remember is that this is not a charge. We reverse this authorization immediately and it will disappear from your statement in anywhere from a few minutes to a few weeks (depending on the bank).
You are never charged unless your request for tickets is selected.