Can’t replace my credit card number

Is it a Canadian credit card?

https://fizz.ca/en/faq/what-payment-methods-can-i-use

You can use a Visa or Mastercard credit card (including prepaid), or a Visa Debit card to pay for your Fizz plans.

Other cards such as debit cards, American Express (Amex), Dinners, and others are not accepted. Foreign credit cards are also not accepted.

If you are not able contact the support

To contact the support you need to go to this page https://fizz.ca/en/contact-us, Fizz push you to find your solution, therefore, you need to search in the solution hub to your solution and only after 10 seconds that you are in a solution page Fizz will give you the chat bubble.

CHAT

FACEBOOK

Your can also send a message via facebook messanger https://facebook.com/fizzca and click send a message (this is a bit slower)

CONTACT FORM

You can also fill a contact form from your account Once logged in, from the account panel go to My Profile → Contact Form (the subject are limited) and fill out the form and someone will email you back.

Yes it’s a Canadian card

If you need a referral code, this is mine 5JATM. You will receive 25$ after 2 months, no bad.

ps: The referral is valid when you create your plan.

You should contact fizz by chat or Facebook messenger!

Make sure that addresses coincide with what you have on fizz. Down to the minute detail

First step is to add a new payment method (Visa, Mastercard or Visa debit) in the profile. Go to My profile -> Payment methods -> Add payment method.
Second step is to associate the newly added card with a plan. Go to My plans -> Manage plan -> Payment methods and click on the newly added card. Then you can delete the old card from your profile.