We no longer have credit cards and wanted to pay with cash this cruise.   NCL's site states you need $100 per person, per day in cash.   We rarely spend $50-$100 on a 7 day cruise, let alone $1400.   We planned on putting in our $188 for the DSC and maybe an extra $112 for everything else.   Will they deny us boarding if we do that?   Thanks for any firsthand experience.   Bill