CubeCards are purchased from authorized merchants in denominations of US $25, $50, $100 & $500. They may either be pre-activated, or activated at the point of sale. Each activated card is registered on the CubeCard.com website, which requires a valid email address. This email address is authenticated by sending an authentication key to the cardholder via the provided email address. The cardholder then clicks on the provided link and completes the authentication process.

Upon successful authentication, the consumer will have the value of their card available for use at any participating merchant.

Participating merchants accept the CubeCard as an additional payment method. They keep track of the consumer's order, then send the order number and amount to the CubeCard payment page, which is co-branded with the merchant's logo.
The CubeCard payment page is not a shopping cart, and does not handle any other payment method.

Multiple cards can be used to make higher-dollar purchases. In between the partial payments, money is put on hold until the entire amount is collected. If an order is cancelled, the hold is released and the money is again made available. Upon successful completion, the money is put in control of the merchant. Merchants determine if and when they will accept the payment and fulfill the order.

Once the consumer has paid with the CubeCard, their only recourse is to the merchant. Before using your CubeCard at a particular merchant, you should check the list of authorized merchants at CubeCard.com!