When you see you are connected as UMA (once you are successfully connected to a wifi router), do you get charged for any of the phone calls, texts, and web browsing you do, even though you are not roaming at the time of using a private (or even public) wifi connection?
Already called tmobile and got 2 different answers. Seems like I asked them a really challenging question. So if anyone here has experience please let me know.
Im asking this since I am going to Canada in two weeks

Thanks