When a user creates a new account with Tessell, she receives $300 of free credits to try the service. These credits never expire. The credits are first deducted from a bill, and then, if a customer is eligible to receive a discount, the discount is applied to the bill. Essentially, both discounts and credits reduce the amount a customer owes in a billing cycle. Some credits purchased via Tessell may have an expiration date. In this case, Tessell utilizes credits in the order that they are about to expire. In other words, credits about to expire earlier are consumed first.