Mac’s Convenience Stores Inc. – Grand Bend Convenience store. Contact Info Phone: 519-238-5664 Location 21 Ontario Street North PO Box: PO Box 579 Grand Bend, ON N0M 1T0 View Map Mailing Address: 21 Ontario Street North, PO Box: PO Box 579, ON, F/T Employees: 6 Key Contact: Fadil Askar NAICS Code: 44512 - Convenience stores Site Selector Map: View location