Really REALLY bad doctor

For many MANY months I have called, written emails, explained myself to both Dr du Toit's accounting agency, staff at Kloof hospital and his personnel at his practice. They were supposed to write an explanation letter to my medical aid before the medical aid would pay. They bothered me to the extent that I’ve explained that I NEVER EVER WANTED TO HEAR FROM THEM AGAIN and have subsequently blocked their emails and phone numbers.

For many months I begged, pleaded just to motivate them to the write the damned letter. Immediately after Sasolmed paid their share, DR du Toit Inc, sent me a statement demanding the very small difference of R205.60, and stated that it is a 150 days outstanding. Really? After I waited 7 months for them to do their part?!?! Their invoice was sent on 11 October and I paid on 12 October. And not even 10 days later their debt collector started sending emaisl and making harassing phone calls to get me to pay some other amount of R281.15 and later changed it to R333.21?