Non existent communication channels

I was recently admitted to the hospital. The pre-authorisation procedures were painless. I was further impressed with a phone call I received at 5:00 am before being admitted to clarify some authorisation issues.

However, after the initial positive experience, I have been unable to resolve a payment issue. I have exhausted every communication channel Discovery has published; 1) Numerous telephonic attempts: After "speaking" to a BOT I am transferred to a message saying: "we are unable to take your call, please try again later."; 2) Published email addresses bounce; 3) The Whatsapp communication only resolves pre-programmed issues; 4) I further submitted an electronic complaint form, which to date has not been answered. I am astounded that I am unable to communicate with an organisation the size of Discovery. I am fully cognisant of the impact the current pandemic has specifically on call centres, however, Discovery's business is fundamentally communication? Furthermore, the pandemic has not impacted their ability to communicate with sales (and related) staff? I have now resorted to a public complaint forum in hope of being contacted by somebody..............