Depending on the type of rewards card, you earn a certain number of points for qualifying purchases at grocery stores, gas stations and other businesses. You can redeem those points for cash back and other kinds of rewards. With the Affinity Cash Rewards Visa® Signature Card, credit card rewards points never expire; and if you choose to get cash back, you can receive it in the form of a cashier's check, Affinity Visa gift card, credit to your credit card, savings account deposit, or checking account deposit.