What are the working hours of mercantile bank of michigan canadian lakes? Mercantile Bank of Michigan Canadian Lakes is open Monday to Saturday and closed on Sundays. The branch opens at 9:00am in the morning. Working hours for Canadian Lakes branch are listed on the table above.Where is mercantile bank of michigan based? Mercantile Bank of Michigan was founded in December 1997 and is based in Grand Rapids, Michigan. The bank operates as a subsidiary of Mercantile Bank Corporation.How do i contact mercantile customer service? Call Mercantile at 800.453.8700 Customer Service Hours Monday - Friday 8:00am - 6:00pm Saturday 9:00am - 1:00pm Branch hours and availability vary by location.