Harassed consumer

I am extremely uncomfortable about this company, TS Marketing Research. Agents from the company have been calling me repeatedly over three weeks. Whenever I answer the phone, the call has dropped. I tried to block the calls. Then today, the call came through again. How is this possible, when I have tried blocking the number? This time, I answered the call quickly and an agent told me he was doing a survey. Initially, I agreed to the "consumer survey", as the agent put it. But the questions got more and more personal and I became uncomfortable. I told the agent that it's ******* to phone people up and ask questions about their salary, dependants, etc. The agent said he got my name from the SA Consumer Database. I told him not to use my responses at all in the survey. Please put a stop to this agency - they are harassing consumers with repeated phone calls and with unsolicited questions. This is *******. I am wondering how many consumers are being harassed like I've been.