Don't receive notifications

You can configure your APN manually https://fizz.ca/en/faq/what-are-fizz-network-settings-apn

is your activation process done?
You should have received an e-mail and a text message.
It might take a while especially if you have ported your old number

Chizz:))

Is it iphone? If yes, just upgrade to latest 12.1.3 and do a reboot. If it's Android, you need configure APN.