SHOCKING LACK OF SERVICE FROM MTN

If there were an option for zero stars it would be more appropriate. I am a medical doctor who relies on a working mobile connection to be on call. On Monday, 1 June 2020 bought a new SIM card for my practice as I'm an existing data customer. I dealt with Jabu at Cresta MTN. He was very friendly and assured me that everything including my RICA docs are in order. However, by Tuesday morning I still had no connection and the message said I've been "RICA blocked". Since then I've ceaselessly tried to call 083 135 (useless loop it puts you on with no help!!!!) as well as e-mailed the customer care line which assures you they will contact you within 8 hours (I am still waiting). I have spoken to the manager at the Cresta MTN (Pascal) who has come up with a variety of excuses as to why this has not been sorted out and actually cannot give me an answer as to why I'm "RICA blocked". There still is no resolution. I am on call today. I have no mobile connection. I have registered and am now liable for R999 pm yet I am receiving no service and there is nobody to contact to sort this out. My practice and patients are suffering as a result of this. I am shocked at how badly MTN deals with customers. I cannot believe that something as simple as connecting a new SIM card can turn into such a nightmare.