Ok, so I booked my vacation (room only) through the Secrets Resorts website. It was going to be a lot cheaper that way. Once I booked it, it said that I needed a credit card on file & that the fee will be due at check in in Mexican Pesos. Does this mean that they wont charge my card for the vacation? Does this mean I need to carry almost $3000 worth of money to Mexico and exchange it for Pesos? HELP! I am new at traveling out of the country & am really confused.