Hopeless!!!!!

Submitted my return end of July reflecting an amount owing to me by Sars and a get Notice stating that I was not selected for audit or verification. About two - three weeks later and still no refund later I contacted the call centre who informed me that my return was under investigation. I received no notification during this time for any additional supporting documentation other than that which had been provided and had to make an additional 5 calls into the call centre to try to get some feedback. Today I received a Get Notification and the refund due to me, is now the amount that I owe Sars????How is this possible? When checking the new get Notice against the one I submitted I see that the Assessed tax after rebates amount and tax credits and adjustments amounts are now conveniently switched around??? Are we working on different systems? My medical bills not paid for by the medical aid is the only deviation which I provided proof of having paid out of my own pocket. This is not the first time that I have an issue with Sars and my previous refund took approximately 7 months to resolve, when Sars owed me money. I am disgusted with the service as this a yearly issue I experience with Sars. I'm not interested in dealing with the call centre or going to a walk in centre as I am in my last trimester of my pregnancy. I want a competent manager/auditor to contact me