You can run a debit card like it's a credit card, and they will accept it. The machines don't recognize the difference, whether you type in a credit card number or a debit card number.
Just select “credit” when it asks for payment method. It's just like when you step up to pay for something at the store, and they ask the old credit or debit question. You say credit, so you don't have to enter your PIN (personal identification number), and it all stays in the Visa system.
You're just using it wrong, and that's why you're having trouble. Just remember this in the future.
