A Diamond member for over 14 years and still my policy is incorrect.

I have been a member of Discovery for over 14 years and I have never had such despicable service from a company. I had to get a new Discovery Health policy starting 1 Jan (with new Vitality), since then I have been struggling for over a month to just get Discovery to link my old policy/benefits/discounts to my new policy. This appears to be an impossible task. I have spoken to the call centre of each department, I have called/whatsapp'd etc with no joy. Last week I thought I had finally got it and the lady said she would re-sync my new policy with my old policy. Today I got an email saying it was done - it was not done, still nothing has pulled through. I am on Diamond status for Health and Black status for bank and STILL I can't get anyone to link my policy properly. I am incredibly disappointed in Discovery, I just want exactly what I had before, nothing more and nothing less. This is the WORST service. I have literally recommended Vitality to my friends, but I guess I can stop doing that because its just not worth the trouble.