ATM's

Does anyone know what is going on with these ATM's? I can't get cash. We have Canadian debit cards and have never had a problem. Since Thursday night it says insufficient funds or cannot complete this transaction. I went to Citibanabex on Friday in Centro and spoke with the manager and he said I had to call my bank in Canada, which I did. All is ok there. Yesterday, I went to Soriana and had the same problems with more people than myself, not receiving cash. A very nice lady gave me 500 pesos because she was lucky enough to get cash from one of the atm's. I didn't want to take it, but she ran away. I thank her again for that, if she sees this.

So does anyone know what is happening? thank you