On my new Samsung A8 I 'm trying to register for wifi calling. I enter the supplied access code and then my address. Koodo responds with 'Wi-fi calling is now enabled for your phone'. I press Finish and the Wi-fi calling Off/On page comes up with 'Requesting service- please wait' displayed. After a couple of minutes this message disappears so I turn on Wi-fi calling but it takes me back through the enter address -requesting service routine again. How do I get this loop to complete?