Laurentian Bank of Canada Customer Service Phone Numbers Customer Service: 514-252-1846 Customer Service Toll-Free: 1-800-252-1846 Laurentian Bank of Canada Credit card support Numbers: 1-877-522-3863.   Laurentian Bank of Canada Headquarters Info, Email, Phone number, Website and live chat Information The Laurentian Bank of Canada is a financial institution founded in 1846 whose activities extend across Canada. The Bank