We are staying at the Tropical Palms Fun Suites and there is NO phones in the Suites, you have to use the pay phone, wanted to get one of those Pre-paid calling cards you see everywhere in the stores, but heard when you use them at a pay phone, there is extra charges or something. Can ANyone explain this to me? This is our only option as we have no cell phone and are leaving in 2 days! Is some pre-paid cards better than others, how does this work? Thanks!