Hello @798159018 and welcome to the Community.
Sorry to learn that you are planning to leave Fido. To stop your service, it will be necessary to contact our customer service.
We did have a system maintenance yesterday. Our representatives couldn't do transactions at that time. The system is back up now, so you should be able to reach a representative without a problem that will be happy to take care of your request.
Our contact page is right here.
We can also send you a PM here on the Community to take care of everything. Let us know what's best for you.