09-03-2019, 11:50 PM
Another option for the card reader (for refilling it) could have been to have it inserted into the payment machine, followed by the credit card, then refilled, and have the machine spit out both cards once the transaction is complete. I'm pretty sure this is how some garages work (I'm thinking GRH). Probably too expensive to change this now though, unless the hardware is compatible and the software can be updated.