The card reader only reads the cards information, it doesn't approve the card. It's just a time saver if you're solo and don't have a way to run the card on the job. When I get a card, I call the office and have Liz run the card online. I can also call Propay from my phone and run it that way, but I enjoy making someone else work.
I'd love to upsell using cards, tried that but haven't had many people go with that yet.