Discovery not paying for Covid test!!!!

On the 6th of June I was in self isolation for 4 days already because I was in contact with a covid positive person. I then did the online assessment on Discovery website and they said I could be positive. So because I received a document from Discovery over the weekend that they pay for two PCR test and two Antigen test I went to one of Lancet's mobile testing station and had myself tested. The PCR cost R850. My test results came back positive. Now Discovery does not want to pay my Covid test because I was not referred by a doctor. No where in there document of the test that is covered does it say I had to be reffered by a doctor. Discovery is really letting their clients down and are in the run of making money not helping people.