Travelling in Mexico - need some info/help

I'm in Mexico.  Somehow my on-line banking is locked and says to call 1-800-796-2555 for help with your account.

Tried calling this number but I get a message saying outgoing calls to out of country must start with   + then country code - what is the country code for Canada?  How do I dial the 1-800 # to call my bank to unlock my bank card?

would it be:  +countrycode1-8007962555?

I kinda need help here so I'm hoping someone has had this before.

Thanks!