If you have subscribed to any of these listed services, you will have to call cust care to disable those and ask them to activate wifi calling. After that you will be able to register from your device.
So I gave Rogers Tech Support a call and they had to add something on their end for the Wifi calling to work. I was able to register it and it works now. I would advise calling them if it does not work the first time.
I had no issues activating the wifi calling. I didn't have to disable any services. I registered and submitted the code they sent and then I made a call using wifi calling and it worked.