Pathcare Covid test seem to be positive by default

I am not happy with the service provided by Pathcare in Bellville near Leipoldt Mediclinic. Yesterday I went to test for covid for operation pre-screening and it was positive, I then went to Lancet today and the test was negative. The reason I didn't trust it is because we haven't been going out, none of us at home has covid symptoms and also the fact that last month the same thing happened. My mother in law went to test for op pre screening at Cape gate and tested positive also with no symptoms. We (father in law, my husband, helper, son and myself) all went to test somewhere different and we all tested negative. You cause so much panic and financial inconvenience it's annoying really. I want my money back, all of it - because I clearly wasted money testing with you because the default result is positive.