I still haven't solved this.
Travel insurance wants a copy of the details from the hospital. Tried to contact the hospital and received a response in Dutch which I haven't done anything about yet. I think they want a copy of my ID book.
The fact still remains that this is now with these bottom feeders at Pienaar. At the moment I'm thinking about just paying to make it all go away. I don't want to risk a bad credit record for this BS. Have read complaints on google they give you a bad credit record anyway even after paying

I wouldn't be surprised. That guy on the other end of the phone seemed highly unprofessional and I'd imagine there is little recourse.
Also surprised that no one seems to know if you can be listed for overseas debt?