try the following link to check your tax status:
http://www.cra-arc.gc.ca/eservices/tax/individuals/myaccount/menu-e.html
My Account connects you to your personal tax and benefit information 21 hours a day, 7 days a week and allows you to:
Check for your tax refund
Check your RRSP limit
Track your CCTB and GST/HST payments
Change your return, your address
and so much more, as you will see