Lack of Service from Horizon!!!!!

This is my 2nd complaint for Medscheme/ Horizon. On the 4th of November 2017 my son was born two months early, which meant he had to go straight to ICU for about a month and 8 days. Numerous test were done daily and all test were done in hospital. Radiology tests started on the 5th of November 2017 up to the last day my son spent in ICU. So here is the problem all Radiology test done after 14 November 2017 were paid in full, but the radiology tests done from the 5th of November 2017 up to the 14th of November were rejected. I have spoke to numerous amount of people at Horizon and no one can give me an answer as to why and this has been dragging along for over 3 months and I am tired of calling and being told "we will get back to you" by the call center. I have spoken to Anne-Marie, Denise, Francina and Danlin from the call center and none of them have gotten back to me. You will find the list of reference numbers below, some of them dating back to December last year and these are not even half of the reference numbers. I need someone from Horizon to do their job and get these claims paid, as these tests were done in Hospital and there is no reason, as to why they were not paid. The practice were these test were done now want to take legal action against me as these accounts are outstanding longer than 3 months. This needs to be sorted out ASAP. I have sent amended Invoices as instructed by consultants months ago, but still no one has answers for me, I am now tired of this back and forth and want someone to sort this out! Find all information below:

Reference numbers: Denise: 180118QKTD1T 290118QL86FZ Francina: 060218QL6XY Anne-Marie: 260218QMRJ22

Practice number: **********

Invoice numbers rejected: J ********** J ********** J ********** J ********** J ********** J ********** J ********** J ********** J **********

Medical Aid Number: ********** 2159 Eric Grimbeek