Double charging for the same blood tests

I have done blood tests on 26th January 2016 and on 23rd of February 2016 at ampath Mary Potter oncology center for my BCR and ABL tests why did you send my tests to NHL are you not pathologists ? Whom gave you permission to do so, You charged me for the blood tests and NHL services charged me for the same blood tests as well. I spoke to your accounts team with regards to this problem and the lady responded to say I must sort it out with NHL she cannot assist me , so I called them and thy said the same thing I must sort it out with ampath. Is this corporate ***** ?? Thinking that the patients will not notice anything !!! Abusing the patients' medical aid *****ing funds like this !!!!! And the fact that they don't give a F*&k to resolve the matter is sickening. You're very fast to hand us over to debt collectors for as little as R15 rand. You as ampath sent that blood tests away and you better sort this out I have been over charged with nearly R8000. I will take this matter up on a legal level if I don't hear from you in the next two weeks. I have also asked discovery to reverse all the payments.