To be clear, each night I would usually have upwards of 4 of my 5 D+ vouchers that would be unused, just prior to the stoke of mid-night. Since the bar staff would not honor any unused vouchers 1 minute after midnight (nightly), I would tell the bar staff shortly before midnight , to process all of the unused vouchers (kind of like "pre-paying" for a drink). I would then use the "pre-paid drinks" in the wee hours of the morning (tipping of course for each drink). The only problem with that plan, is the one bartender that processed the vouchers would often leave the bar area for a "break" or to wash glasses or whatever and trying to convince other bartenders I have a "prepaid drink" already, was a comedy by itself. This plan especially was compounded by others doing the same "prepaid plan" (because it was the only option), causing even more confusion with multiple bar staff members.
The bottom line is that the staff involved did not know of the voucher policy change (or did not want to hear about it) and took NO effort to resolve the issue. Somehow, the staff (from top to bottom) thought myself (and others) were trying to cheat the system, which was not the case at all.
Otherwise, the 14-night B to B cruise was awesome!