i think sometimes the ATMs are just empty and reject the card . Santander rejected my card. went to another ATM and was ok.

Multiva only seems to accept my visa card and not my mastercard, the INBURSA bank atm on Orizaba never works for me, the banbajio should work with visa but rejected my attempt.

have you experienced different fees depending on where u r? i'll have to go to the airport and check the ATMs there to see if the reports of higher fees are just hogwash