If the CM was saying that converting a QS credit into 3 snack credits that could be used in separate transactions could be done in the gift shop, I would agree that she would almost have to be mistaken. But the CM said it has to be done at the front desk. I know some people have gone to the front desk of their resort and had their
DDP credits altered/fixed when they'd been charged incorrectly, so it seems plausible. I'm skeptical but optimistic at the moment.
I understand that the drink stations at BOG are self-serve at least for now, so everyone in the restaurant has access to fountain drinks whether they paid for them or not; however, BOG is not requiring non-DDP customers to pay for drinks, so forcing those on the DDP to "pay" for a drink with their QS credit would be unfair in my opinion and definitely against Disney's new published policy that the non-alcoholic beverage "may be substituted for any item that is an eligible snack at the location".