I paid for a cruise using my Carnival MAstercard. The night before I was scheduled to cruise, I went online to check my available credit. . I was stunned when I discovered that my account had been closed 3 days earlier - 3 days before the cruise WITHOUT NOTIFYING ME AND AFTER TAKING a $600 payment. I was scheduled to take a cruise the next day and that $600 was my expense money. I was stranded and trying to borrow money to pay my hotel bill and other expenses. I have always maintained this account and usually pay over the minimum. To add... read full review »