i cant use my data in the plan

To contact the support you need to go to this page https://fizz.ca/en/contact-us, Fizz push you to find your solution, therefore, you need to search in the solution hub to your solution and only after 10 seconds that you are in a solution page Fizz will give you the chat bubble.
CHAT
Go to any help page, if you are not connect login
The business hours: every day from 8 a.m. to 9 p.m. (EST).
Wait 5 seconds for the bubble icon to appear at the bottom right of the browser and click on the icon to chat with support. Try a different browser if you have issues getting the bubble to appear.
If the chat bubble does not appear, this means that the number of sessions waiting for our answers surpasses our processing capacity. If that happens, send us a private message via Facebook Messenger or Twitter.
FACEBOOK
Your can also send a message via facebook messanger https://facebook.com/fizzca and click send a message (this is a bit slower)
CONTACT FORM
You can also fill a contact form from your account Once logged in, from the account panel go to My Profile → Contact Form (the subject are limited) and fill out the form and someone will email you back.

Try to setup your apn settings and also try turning on your mobile data.

You must be accumulating a lot of data in your plan. Your data will roll-over, but any data that is not used for 3 months, will expire.

 

Here are the things to check in order to use Fizz mobile data:

1. Make sure your phone is compatible with Fizz network for data

Your device must have dual-frequency support for 1700/2100 MHz (also called AWS or band IV)

2. Make sure APN is setup properly. Restart phone.

3. Enable data on your phone settings.