Being audited - why is it taking so long?

I submitted by tax return via SARS eFiling on 7 July 2015. On 9 July 2015 I checked what progress had been made only to find a letter stating that they require documentation for review. My employer does not pay my medical aid, I pay the total contribution myself. I submitted the IRP5 again as well as my medical aid tax certificate and RA tax certificate. I have not even claimed to medical expenses I paid out of my own pocket. Every time I call them, I am told that they are still busy with the audit and it can take 30 working days. It has already been 21 working days and today I am told it can take another 21 working days! According to my IT34A (??) I am due a refund (there is a negative sign next to the amount). I do not claim for anything I am not entitled to claim for an am very honest with my taxes. Surely it cannot take so long for my tax return to be audited??

Unfortunately it does take 21 working days for SARS to perform an audit. This is there internal process as there is a manual intervention. That is the maximum time they should take.