Lancet laboratories Horrible unpleasant unprofessional

I put through a complaint with lancet on the 19 Feb ... regarding a billing query that I have had no luck with, a polite lady(Melanie) called me said she would investigate and we would get the matter resolved. Today is the 14th of April and still no feedback, I had to call them to do a follow and then I was advised that it wasn't just the incorrect patient on the bill,medical aid advised that I didn't have enough funds... no problem I can pay that bill,3 days later I get an sms saying I have been handed over to debt collector... the bill that I'm querying from almost 1 year ago still no feedback from lancet .. Lancet laboratories are the most unprofessional, haphazardly run laboratories by far ... simple process are like rocket science for them,they will add to you stress and put you back in hospital or maybe that's the plan... I have now reached a point of frustration with these guys and their unprofessionalism