Number belongs to Advanced Collection Services Limited and displays 'unknown' or 'A.C.S' on the call display. They are, as their name suggests, a collection agency.
Advanced Collection Services Limited
2840 Nanaimo Street, Suite 200
Victoria, British Columbia
V8T 4W9
Main Phone: 250-388-0700
Fax: 250-388-0755
Call Back #: 800-668-1383
http://advancedcollectionservices.ca/
They do credit recovery for the big 6 banks all across Canada.