Intuit Canada transitioned its activation systems around that time. We don't have a phone activation option available anymore. Are you connected to the internet? Have you tried an internet activation?

Uninstall the program and try to install it using this link: https://intuitglobal.intuit.com/downloads/CanadaTax/2018/dls/TurboTax_2018.exe

If the issue persists, I suggest you get in touch with our product support. If you bought it directly from Intuit, we might be able to help because we should have proof of purchase on file. You need to show proof of purchase, which is a receipt, if you bought something in a store.

Either way, I suggest contacting our phone support so they can assist you. 

Thank you for choosing TurboTax.