How does the gas pump know how much is on a prepaid card?
I used a prepaid card at the pump and I didn t expect it to stop at the amount the prepaid card had on it. How does it know and do all gas stations have this technology?
- GEEGEELv 74 years ago
The same way it (or any other merchant) knows when a person has reached their credit card or gift card limit. The magnetic strip carries all kinds of information, and balances are one of them.
- Steve DLv 74 years ago
The magnetic strip on the back keeps a running total of how much was loaded and how much was spent and what the new available total is. All transaction terminals have this capability.
- Badge203Lv 74 years ago
Yes all gas stations have that technology, the strip on the back holds all of that info
- Beverly SLv 74 years ago
Yeah, so you can't steal.