SARS - Pathetic Service.

I received a notice that I owe SARS money in a business that I have inherited. I believe that the money owed is before my time. Now, Me the good citizen is calling SARS to try and resolve the issue. First call 1 hour before answered. 10 seconds into the discussion the call drops. Second call 1 hour 20 minutes before answered. Then now the lady starts asking 150 questions to make sure I am not a *****. Now, by this time I had left the office a long time ago as business does not wait for SARS. Just as I get the number by calling my office on another phone, the call drops. Off course the people do not call back to address the problem. Should I keep trying???? In my book 0% for SARS, MR Kieswetter you have no control or you do not understand the basics of customer service!!!!!!