Internet not functioning

Amina what is your problem? With the modem or with your phone? Wifi or Ethernet? Give us more details.
Look here for internet modem. https://fizz.ca/en/faq/i-connected-my-device-using-network-cable-i-still-have-no-connection-internet-how-do-i-fix-it
Lokk here for data on your phone https://fizz.ca/en/faq/what-are-fizz-network-settings-apn
To reach Fizz. Chat with Fizz.
To chat without problem:
First, connect you to your fizz account.
Then contact them at: https://fizz.ca/en/faq/what-payment-methods-can-i-use
Wait a few seconds to see the green chat bubble down to the right of the page.
When you see it, click on it.
Your chat session begins with Fizz
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Or you can send a message on messenger https://facebook.com/fizzca