Discovery Vitality Customer Service is Non-Existent...

So you can't book domestic flights with Kulula online at the moment. Instead your are told to contact Vitality Travel via email or a Jo-burg number ***). Well after 4 days I have not had a single response to any of my emails and I have wasted over 60min of airtime trying to get through to this Jo'burg number. Discovery Vitality your service is non-existent. Very Disappointed...