Where do you refill prepaid cards?

If the prepaid card you have does not bear your name and you haven't registered the card online, then your only option for reloading the card is through one of the "cash reload networks"; the main ones are Moneygram, GreenDot, Western Union and PowerPay. Your card, or the package in which the card came, will tell you which of those cash networks is available and what retail locations to go to. You would typically have to go to a pharmacy or grocery store or convenience store of the available network to refill the card with cash.

If the prepaid card has your name embossed on it, then you can also refill it via direct deposit, by asking your employer to deposit part or all of your salary in the card: the card comes with a Direct Deposit Account number that you give your employer, much like a checking account number.

Some prepaid cards also have more refill options than just cash or direct deposit: check the website of the prepaid card provider to see what's available. Some prepaid cards can be refilled from a credit or debit card. Some prepaid cards can accept bank transfers via eBillme.