Discovery Health COVID test reimbur*****t refusal

I went for my COVID test on 30 April and summitted my claims and receipts to Discovery. I had to re submit my forms and receipts 4 times as they kept on coming back with questions. Pathcare at Netcare Gardens also submitted documents, and Discovery still didnt want to pay the R850 for the test (they cover x2 per year) as they insisted on my doctors practive nr. I didn't go via my doctor as that would have been more costs for me. Where does it state this. I am now living in Spain and ask every time for a international nr to contact them on, but still they dont give it. The emergency nr from abroad +*** doesn't work as tried that 3 times; The ref nr for the cases are (***,***,***,***)