Changing address IC
How to setup and manage a Web account with Industry Canada
STEP 1:
http://www.ic.gc.ca/eic/site/025.nsf/eng/h_00009.html
2. Manage Existing User Account
STEP 2:
Once you have created a web account then use this link to change you address information.
https://apc-cap.ic.gc.ca/pls/apc_secure/auth_req_chg_am_addr$.startup
If all else fails. here is the Mailing address information
Industry Canada
Amateur Radio Service Centre
P.O. Box 9654 Postal Station "T"
Ottawa, ON
K1G 6K9
Telephone: 1-888-780-3333
Fax: 1-613-991-5575
Email: spectrum.amateur@ic.gc.ca
Hours of Operation: 8:30 a.m. to 4:30 p.m. (Eastern Time)