I used the atm at the banamex across from the oasis twice during my trip. I have recieved 3 emails (all the same and in spanish) from them over the past week saying something about them updating their system and wanting to me to confirm my account with them. I don't have any account with them. I also never gave my email address to them while in cancun. Anyone else know what is going on here or have any experiences like this one? The email appears legitimate too.