ONGOING HARASSMENT

I GET HARASSED WITH CALLS TELLING ME I AM IN ARREARS WHICH HAS NEVER BEEN THE CASE & I HAVE HAD A FOSCHINI ACCOUNT FOR OVER 40 YEARS!! I PAID R775 FOR LAST MONTH ON 1 OCTOBER IN @HOME STORE IN CLEAR WATER MALL ONLY TO RECEIVE ANOTHER CALL NOW WITH THE EXACT SAME AMOUNT TELLING ME I AM IN ARREARS!! I AM APPALLED AT THIS HARASSMENT AS I HAVE NEVER SKIPPED A PAYMENT. EVER