DEFAMATION OF CARACTER

I HAVE HAD A CONTRACT WITH VODACOM A COUPLE OF YEARS BACK. ABOUT TWO YEARS AGAO I TRIED TO GET ANOTHER CONTRACT BUT THEY WERE OUT OF STOCK AND COULD NOT ASSIST ME. I WENT TO ANOTHER SERVICE PROVIDER AND WAS ASSISTED IMMEDIATELY. VODACOM PHONED ME AFTER A WHILE AND ADVISE ME THAT THEY HAVE RECEIVE STOCK AND WAS ABLE TO HELP BUT BECAUSE I HAVE ALREADY SORTED THIS OUT I DECLINED THEIR OFFER. I TRIED TO ADD ON TO AN EXISTING CONTRACT WHICH I HAD WITH VODACOM AND WAS TOLD THAT WAS NOT ALLOWED SO I ALSO ADVISE THEM NOT TO CALL OR SEND ME ANY PROMOTIONAL DEALS. I WAS AGAIN CONTACTED LAST MONTH (SEPTEMBER 2017) AND THEY HAD A GREAT DEAL WHICH I COULD NOT DECLINE AND ACCEPTED THIS. I PHONED TODAY 05/10/2017 AND WAS TOLD THAT MY ORDER WAS DECLINED AND THA I AM A POOR PAYER. I WAS NEVER BLACKLISTED IN MY LIFE NOR WAS I DENIED TO OPEN ANY ACCOUNTS. ALL MY DEBIT ORDERS GO OFF EVERY MONTH WITH NO PROBLEMS AND VODACOM ADVISE THAT THEY HAVE IT ON THEIR SYSTEM THAT I AM A POOR PAYER. PLEASE NOTE THIS IS AN INSULT . IF YOU DID NOT WANT TO PROVIDE ME WITH THIS SERVICE YOU SHOULD HAVE SAID SO, NOT INDICATING THAT I AM A "POOR PAYER" YOU ADVISE ME THAT ALL IS IN ORDER AND THAT MY ACCOUNT WILL BE DEBITED. I WILL NOT BE INSULTED LIKE THIS AND WILL TAKE THIS MATTER FURTHER