Originally Posted by
Road_Dog
have you actually tried this with Ally yet? Or are you just speaking from experience with something like Discover?
Because the process with Ally is much more involved. There’s multiple screens I have to click through on the keypad (do you want cashback, verify your phone number, do you want marketing emails, verify the total, etc) before finally it shows me a total on the keypad itself (this is when I’m told to swipe). This is different from Discover where I never see a total on the keypad itself, I only ever see it on the POS itself (where it says stuff like my total owed, processing, approved, etc). Sorry if that’s confusing.
I echo ChurningAP. From personal experience with MOs, Discover, PenFed, and now Ally: Wait until the prelims of phone #, ID if necessary, total amount, receipt type, etc. are done and the system is ready for you to swipe, THEN tell the CSR you want to split the payment between two (or however many) cards and how much on the first swipe (only the first swipe for now, don't bombard them with too much info at once, after it's done then I tell the amount for the second, etc.)
I did have a Vanilla MC gebit appear to autodrain the other day on a Discover load when I swiped the wrong card which had a lower balance than than what the CSR keyed in, and the WM system correctly drained the gebit and showed the correct remaining balance due, but I haven't had the opportunity to experiment and figure out if it was a fluke and what the rules are. So there's the possibility of autodraining but needs more DPs.