INCORRECT PAYMENT UPDATES

I HAVE HAD A CONTRACT WITH VODACOM FOR 6 YEARS.PREPAID EVEN LONG BEFORE THAT. IN THE LAST 4 MONTHS I MADE PAYMENTS TO MY ACCOUNT AND BECAUSE I DID NOT RECEIVE ANY STATEMENTS I NEVER KNEW IF THE AMOUNT WAS CORRECT. THEY WOULD NOTIFY ME WAS THERE A SHORTAGE WHICH I WOULD THEN PAY. LISTED ON THEIR SYSTEM I SKIPPED PAYMENTS?! HOWEVER MY ACCOUNT IS NOT IN ARREARS AND EACH MONTH PAID.LAST MONT THEY LISTED ME AS UNPAID BECAUSE THE AGENT AT THE COUNTER DIDN'T PUT MY CARD THROUGH FOR 1CENT? SERIOUSLY??? THIS EVEN WENT AS FAR AS ITC. TODAY I GO FOR MY UPGRADE AND WAS TOLD I CAN ONLY QUALIFY FOR A LOWER PACKAGE R150 MAX, THEY DOWNGRADED ME?! I FEEL THIS IS HORRIBLE SERVICE AND COMPLETELY UNFAIR. THE GUY AT THE STORE SAID HE WILL REQUEST AN INCREASE BUT I DON'T EVEN EXPECT A CALL BACK FROM THEIR TEA LADY SINCE IT'S BEEN 2 WEEKS AND NOBODY BOTHERED TO EVEN LOOK AT THE 1C ISSUE TO CLEAR MY NAME. I THINK ANY CONSUMER CONSIDERING TO JOIN THEIR TEAM SHOULD KNOW WHAT JOKE THEY ARE GETTING THEMSELVES INTO. I'VE BEEN A LOYAL CUSTOMER FOR A LONG TIME AND THIS IS WHAT I GET FOR IT. THEY RUIN YOUR CREDIT SCORE KNOWING YOU'LL BE STUCK WITH THEIR **** AND NO OTHER COMPETITOR WILL HELP YOU.