Verbally assaulted by an officer

I was assaulted by officer L E Mokotjo today on the phone all because he is to lazy to look through the bank statements for the reference number that is issued by them when you get a fine. I refused to give him a proof of payment for the fine as is my right as they issued the reference number and we got into a heated discussion ending with him telling me to "F_ck off" ,so this is my taxes are for to employ lazy individuals who assault hard working citizens on the phone.