I changed my paiement card and i am now trying to proceed to my monthly fee but i dont see the option for it
If you have added your new card, and already removed the old card from your profile:
Then any future payments should come off the newly added card, since the old one is not longer of the account.
Monthly fees are automatically charged from the payment on your account, assuming there is no problem with the new payment option.
If you still have any concerns, you can contact a customer service agent.
Other means of contact
Whatsapp: (438) 393-5814
By private message on Twitter: https://mobile.twitter.com/fizz_ca
By private message on Facebook: https://www.facebook.com/fizzca/
CHAT however is the quickest method.