Intallation

You need to schedule a new appointment

To reschedule your technician appointment:

1- Log into your account and go to Manage plan.
2- Click on Appointments.
3- Here you will be able to see a complete list of all your past and future appointments.
4- Scroll to the appointment you wish to modify.
5- Click on Reschedule.
6- This will open the booking interface. Select a new day and time slot and click Save.
Beware — if you just finished scheduling your appointment, please allow a 3-hour delay for the Reschedule button to appear in your account.

source: https://fizz.ca/en/faq/how-do-i-manage-appointment-technician-visit-my-service-address

Hello Julie, if you are unable to follow Mike's instructions, you can simply contact technical support either via chat on any support page (bubble bottom right) or via Facebook.
Welcome to Fizz!