MULTICHOICE ****MING

I keep getting sales phone calls from Multichoice / 3rd party agents who try to sell me additional insurance that I do not need. 2 weeks ago a lady called me and said Multichoice is giving away free Explorer decoders, I told her my decoder is not quiet right but I can contact a service centre, she said no need as I will be getting a new decoder FREE of charge. I said okay give me more info, I was told I will receive it by courier and then she asked me for my bank details, I told her I am not home now but email me all the details to look at it later, she persisted that I to do it now so that I do not loose the offer, she asked on what day should the debit order be deducted, 25th or 1st. I told her that Multichoice has got all my details for debit details and I am not giving private matters over the phone, she mentioned that she can send me a message to get her to link into my account, I said that I will not do that It is private info and DSTV has all my info and why must I have two debit orders if the decoder is free. She mumbled something that I could not make out so I ended the call. She called again and I blocked her number and a day later I got the same call on another number, I new now this is a **** because she asked for banking details. SO I ASSUME THAT EITHER MULTICHOICE IS CALLING PEOPLE TO **** US OR MULTICHOICE IS GIVING / SELLING 3RD PARTIES CUSTOMERS PRIVATE INFO. GIVING MY PRIVATE INFO TO OTHER PEOPLE IS ILLEGLE AS PER POPIA ACT. I HAVE PREVIOUSLE ASKED DSTV TO REMOVE MY PHONE NUMBER FROM MY ACCOUNT SO THAT I DO NOT GET ****MERS CALLING ME. HOW IS IT POSSIBLE THAT ****MERS KNOW MY NAME, ADDRESS AND WHAT IS ON MY ACCOUNT, AMOUNT OF DECODERS, EXTRA VIEW AND SO ON. IT CAN ONLY COME FROM DSTV OFFICE OR SOMEONE IN THAT DEPARTMENT GIVING/ SELLING CLIENT NUMBERS. THIS MUST STOP PLEASE