Consumers can purchase Green Dot prepaid debit cards at drug, department and grocery stores such as CVS Pharmacy and Wal-Mart, according to Green Dot's corporate website. A Green Dot prepaid card works like a debit card issued by a bank except that it is not tied to a checking account. Users add funds to the card, then use it to pay for purchases.
When consumers purchase Green Dot prepaid cards at the store, they load a specific amount of money onto the card. This becomes the available cash for purchases. Users must provide identifying information in order to activate the card, including their social security number.