Incorrectly disconnection

I paid my monthly premiuim of R330 on 21/09. Dstv diconnected it although the due is 25th of each months. I made numerous calls to Multichoice where i was informed my account is not paid, i sent proof of payment as requested and the connection was done, just after coming back from Holiday is disconnected again and im notified im on arrears although the due date is 25th October. For the whole mobths dish is not working although i paid moneyand proof sent. Im so disappointed on the level of service as im tired of calling and explaining samematter,maybe its time i just cancel my subscription as im paying for srervice im not getting.