Thought I'd use Viber as a replacement for Skype. BIG MISTAKE. I do not receive an SMS or call to activate the app account/ Their bot and 4 (YES 4!) support people (Tim/Katriona/Angelica/Gavin) all just trot out reinstall and try again. Have done that ten times and sick of the same nonsense. None of them can tell me why doing it again will give a different result from the last time. Bonkers. I give up.