Terrible service and no response or help

I was recommended moving medical aid to Bonitas by a friend and after carefully considering my options, I decided to leave my previous medical aid and sign up my mother and I for Bonitas cover. After several weeks back and forth being told to submit more forms and proof each time, I had finally sent all documentation including proof of my previous cover. When membership details were received I noticed a three month waiting period. When I queried this, I was told that there was a waiting period because we had not been covered by medical aid for three months despite supplying a certificate to show the last date of cover one month previously. Between my mother and I we have wasted a lot of time and money trying to call Bonitas, promised calls back and escalations and never getting a response. I am bitterly disappointed and regretting my choice to get cover from Bonitas. Please can someone address this urgently. We signed up within the three month period and now have to make 6 extra payments and no one at Bonitas is willing to actually look at the documentation to prove we had medical aid cover for three months. Awful, uncaring and inefficient service.