They have problem with the referral display
Try to clear the cache or change browser sometime it helps
For your information, some referral bonuses are not showing in the account of certain members. Fizz is aware and wants to reassure you: no bonuses will be lost! It’s a display issue our teams are currently working on, and everything should be back to normal shortly.
source : https://fizz.ca/en/faq/what-kind-of-rewards-do-i-earn-for-inviting-friends