Use Amazon Cash to shop with cash on Amazon com Use Amazon Cash to conveniently shop on Amazon.com without a debit or credit card What is Amazon Cash? You can visit participating store locations to add a Gift Card Balance to your Amazon Account. Present your barcode or phone number to a cashier. (If the store has a kiosk or ATM, you can use it instead to enter your phone number.) Add between $5 - $500. How it works Step 1 Sign into your Amazon account or create an account.