Lack of service and communication

When I joined Discovery the person who assisted me was friendly and before I signed he was very quick to call me. Now that I have been a member for close to a year- I haven't been able to reach him via WhatsApp, call or email. I need to get advice regarding my medical aid and he is no where to be found. This has been rather disappointing since he said I can reach him anytime.

I urgently need an agent to call me and assist me please. The guy I was signed by is David Stofile.

Can someone urgently assist me?