Awful! Vitality membership still not fixed after 4 phone calls over 3 weeks + emails

Zero stars! After communicating with Discovery's customer agents 5 times in the last 3 weeks, they still haven't been able to 'recover'/'fix' my Vitality membership. The story: At the end of December I got my Vitality membership, and then a few weeks ago it just stopped/unsubscribed for no reason. This translates to not being able to use any Vitality benefits. I have phoned many, many times and even received an email address (with a request to screenshot my problem) from a Customer Service agent. When I emailed with screenshots ... I received an automatic response saying the email is not managed/read by anyone. Please, can someone explain to me WHERE to go to fix this issue if Discovery's Customer Service can't fix the problem? If I pay full gym fees tomorrow (for next month), where do I send my invoice for the money Vitality ****** me from? Shockingly bad service.