Double charging for the same blood tests

Amptah for some reason sent my blood tests to NHL services to be tested the first test was sent on the 26th January 2016 and the second one on the 23rd of February 2016 by ampath to NHL services to be tested I don't know why they did because blood tests is what ampath does. Amptah charged me for both of the blood tests that they sent away to NHL services, and NHL services charged me for the same blood tests as well I spoke to ampath and asked why im I been double charged for the blood tests the lady responded to say I must sort it out with NHL , so I called them and thy said the same thing I must sort it out with ampath. I spoke to the accounts manager at ampath and she said that NHL should not have billed me in the first place they have billed ampath all already for my tests that is why ampath billed me. I called NHL again and I spoke to Tshidiso (call no 32XHNK 00588 I asked him to send me all the correspondence and why they billed me and amptah for the blood tests. It's now nearly a month and I have not heard from NHL and the matter is still unresolved.Is this corporate *****, abusing the patients' medical aid *****ing funds like this its is sickening. i am waiting NHL