Order a new SIM. You will get it in time to activate with introductory prices
For this kind of problem your best option is to contact them.
CHATGo on this page https://fizz.ca/en/faq/resolving-issues, if you are not connect loginWait 15 seconds for the bubble icon to appear at the bottom right of the browser and click on the iconFACEBOOK
You can also send a message by Facebookhttps://facebook.com/fizzca and click send a message (this is a bit slower)