Corvid19 testing - Discovery medical aid & Dis-cem

On Monday 6/07/2020 my wife and i went to Dis-cem drive through pavilion shopping mall for corvid 19 testing after direct contact with a positive tested person.. Dis-cem does not accept medical aid or lancet lab forms which my doctor gave. A receipt was given for corvid19 testing and told that we must claim from medical aid. Discovery wants an invoice to proceed with payment with medical details and codes, but Dis-cem says that the receipt should be sufficient. After numerous calls and emails both companies don't take responsibility and i'm out of pocket for R1700.