He fills out the registration form, including his credit card, and presses submit . All pertinent information required to bill the credit card is then sent to a financial clearinghouse where it confirms the card's legitimacy. If the card checks out the charge will be accepted and an approval number is issued back to the gaming software. This transaction takes usually between five and ten seconds. The customer is unaware this transaction has even taken place when the approval page has been served on the XYZZ Sportsbook screen.
Most online casinos outsource the banking end of the operation to large financial institutions.
All this software is useless if there are no customers in the casino. Most casinos use a variety of different marketing packages to keep in touch with current users and to attract new ones. The most popular amongst successful properties is the affiliates programs which pays website owners for users referred to the casino. The Affiliate Software tracks a users activity and records it for later disbursement to the website owners. Another popular marketing program is direct email marketing software.