Citadel Instant Banking is a payment service to facilitate easy online payments for goods and services around the world, including online casinos. As well as offering convenient online payments directly from the customer's bank account, they also offer the full range of traditional banking services such as savings, checking accounts, loans, credit cards, and investments. Citadel banking customers are able to link numerous personal bank accounts to their Citadel bank accounts to easily manage their online transactions. For online casinos that accept this payment method, it is a very secure and fast way of making a bank transfer.