UNACCEPTABLE SERVICE FROM DION WIRED

i AM NOT AT ALL SATISFIED WITH THE TREATMENT DION IS GIVING ME, YES I DO ADMIT I HAVE MISSED INSTALMENTS IN THE PAST, THE FIRST REASON I WAS OVERSEAS DURING DECEMBER AND JANUARY 2015 AND THE SECOND REASON IS I WAS TERRIBLY UNWELL DURING JUNE 2015, WHICH I APPOLOGISE FOR. WHAT I AM UNHAPPY ABOUT IS THAT DION JUST DECREASED MY CREDIT LIMIT FROM R40000 TO R11000. MY MONTHLY INSTALMENT IS R800,I PAY R5000 EVERY MONTH, THE LADY AT CUSTOMER SERVICE (GERALDINE) TOLD ME THAT I DONT PAY MY INSTALMENT EVERY MONTH, I MERELY AM PAYING OFF MY BALANCE,REALLY NOW, I DONT UNDERSTAND. I HAVE TRIED MANY DEPARTMENTS BUT NOBODY COULD ASSIST, IT IS JUST TOLD TO ME THAT IT IS COMPUTER GENERATED AND THAT I CAN PHONE BACK IN FOUR MONTHS TIME, I AM PAYING THE LAST INSTALMENT TODAY OF R4882.51 FOR MY FRIDGE AND WOULD LIKE TO PURCHASE A WASHING MACHINE/DRYER/DISHWASHER,HOW COULD THIS BE POSSIBLE WITH R11000 CREDIT.ALLI ASK IS FOR MY CREDIT TO BE REINSTATED TO R40000, DION SHOULD NOT RELY SOLELY ON COMPUTERS, YOU ARE DEALING WITH HUMANS AND SOMETIMES ITS ONLY HUMAN TO ERR,SURELY YOU DONT WANT ROBOTS AS YOUR CUSTOMERS, WE ARE ALL HUMAN AND WE DO DEFAULT AT TIMES, PLS CHECK ALL MY RCS ACC'S, VERY WELL CONDUCTED