HARASSMENT from MBD on behalf of SABC TV License

If the SABC wants to collect money from me then they need to use reputable companies who know about customer service. The way I have been harassed and disrespected by MBD employees is not acceptable, in fact for the longest time I thought it was a **** as they would always insist on me giving them my personal info (which they should have) even before they announced who they are and what they need from me, and always call to force the issues of sharing my bank account information even though I have told them on numerous times that I do not want to set up a debit order . SABC "handed me over" to MBD credit solutions, this company calls 8-10 times a day with private numbers etc. I paid the outstanding amounts and they still continued to call me for weeks. I have informed over 8 of their call center agents that I have paid the outstanding amounts and to check their records. After almost a week of saying the same thing over and over again today a man called and said that he is calling for MBD. I again told him that I have paid the outstanding amount , at which time he informed me that he was inquiring about the 2018 tv licence fee that was effective Feb 2018. I asked him why a collections agency was following up on a payment that I have not even received correspondence for. He said they are just making sure I pay, I told him that this new bill ,was not overdue, in fact I have not even received a letter about it so why do they have to call me 10 times a day and harass me at work. He very arrogantly said they will keep calling me until I pay. I asked again what business a collections agency that is meant to follow up with overdue accounts has to do with a 1 week old bill, and he continued to ramble on very rudely. I then told him that this is harassment now and that I will not share my bank account information to him by force, as the bill is new and I will pay it on my own terms. Not even 2 hours later and another lady calls, says hello and asks for my ID number , I state I will not share it , what is this about, she says MBD, I tell her I juts spoke to someone this morning so why is she calling me again, she says it's not on file that I was contacted, asked her to make sure she updates the system or whatever, she then says "what's your problem?" in Zulu in the most disgusting tone and she said continued to be rude, told here I won't picking up any more of their calls.