Your friend will get it first, on their second bill and then you will receive on your next bill after that. At least that's how it worked for me.
The rules for receiving the referral credit are clear.
When you activate/sign up, you have to enter your friend's referral code.
Both you and your friend will receive an email confirming the referral with pending status.
After you have paid your second monthly bill (and before your third bill is due), you will both receive another email confirming the receipt of your $25 referral credit. Both you and your friend must have an active account to receive the confirmation email.
If there is an issue, you will need to contact Fizz support.
The idea of this page https://fizz.ca/en/contact-us is to explain how you can access the chat bubble. If you do a search in the Solution Hub related to your issue and access the help page the chat bubble will appear at the right corner.
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.