Why my mobile perk does not work?

Hello pegah,
Apologies for this.
Checking your account I can see that the perk was successfully activated on your number.
Have you tried to restart your phone and checked the APN settings, if you are using an android one?
In the meantime, I suggest you check the following FAQ https://fizz.ca/en/faq/what-are-fizz-network-settings-apn for additional steps to follow if you are not able to use your mobile data.
If the situation persists, please contact our support department that can be found over the FAQ https://fizz.ca/en/contact-us
Have a nice day.
Nicolae Bogdan