SARS CALL CENTRE AGENTS CUT CALLS ALL THE TIME

I have laid a notice of objection on the 25 November 2014. Ever since they have being requesting the same receipts over and over again, however I provide the same receipt to them as if the person handling this does not what they are doing. To date they still have not provided feedback and whenever I call in to the centre they agents have no clue as to what is happening , this specfic agent tell me that the turn around time is from the 18 March 2015 , this is the last communnication regardng supporting documents , ( 60 days turn around time for notice of objection) but this should be from the date I had laid the notice (25 Nov 2014) , she didnt know what to say when I corrected her so she cut the call. I have had this experience thrice before with previous agents. I wonder how these agents are trained or wheather they are trained at all. They take weeks even months to provide feedback on an issue , This is extremely bad customer service.