My sim card has already been assignedtoanother account. What can I do?

Hi Bryan,
Please take into consideration that between July 28th and July 31st inclusively, we are going through a maintenance period, some of our services may not work properly and some features on your account will be temporarily unavailable. Therefore, today our customers won't be able to activate or change a Sim card, or a phone number, among other features.
The maintenance is a necessary step for the stabilization period in order to keep improve our mobile services and resolve the remaining glitches and bugs in our system.
You can find all the available informations on the following links:
https://fizz.ca/en/faq-stabilization-period
https://community.fizz.ca/questions/2039467-important-systems-maintenance-scheduled-july-28-july-31
In order to be able to help you further, I'm kindly asking you to contact us starting tomorrow, in private by chat or Facebook messenger. Please check the info provided on the following link: https://fizz.ca/en/contact-us.
Have a great day!
Radu