Shaw were able to fix my S10 after my ticket was escalated in early July I think and it's been fine since; it got an Android software upgrade a few weeks back and WiFi Calling was still fine after the update. My wife's S9, however didn't get any update and it said I had the latest version when I tried to force an update so she's been struggling without Wi-Fi Calling. The S9 finally received a software update this morning and the Wifi Calling option reappeared in the menu - activated and now works fine, so hopefully everyone who had the problem is ok now.
My S9 is having the same issue, we are new to shaw in the past month and need wifi calling were we live, the option doesn't show up at all, i checked fir a android update on the phone, but thr phone says it's up to date, would you mind sharing the update version info from your S9 so I can compare with mine? Thanks in advance