I have some Five Back gift cards that I've been converting into OneVanillas (for the cash back obviously), but I've been going into the store and having them ring up 4 cards separately, because I've asked if they can split tender and they always say no. It's really a huge hassle to run 4 separate transactions every time though, and they always need to call for a backup cashier because it takes so long. My question is: will the Five Backs auto drain so I can run them in a single transaction?