Originally Posted by
CWAL
I've noticed that once the signature entry comes up/the receipt prints, you're SOL for MGC during that transaction. Keep some backup VGC to finish it out with.
Not at my WM, I am able to swipe again the same MCGC and make sure I cancel. Sometimes even when the car enters amount after I swipe and enter pin, if I don't hit cancel or change payment fast enough, it defaults to credit.