Once you get past the log-in screen for My Rogers (when activating cellular), there are a few steps (choose the number attached to the watch, etc.) and then you get to a page asking to enter the 9-1-1 location.
I just had problems with connecting cellular and was able to fix it myself. 1. The first problem "Sorry, there's issue on our end. Thanks for your patience while we fix it" when connecting to the Rogers account was completely my problem. I was using ...