Foschini Call Centre agents can't get the message

I no longer wish to hear my cellphone ringing because of this number-***. I tried several times to make it clear to Foschini Group Call Centre agents that I AM NOT INTERSTED ON THE PRODUCT THEY WANT TO SELL TO ME but the message gets into the one ear and immediately exists on the next. Why I am saying this is because a day cannot go on without me receiving their phone call. 2 shocking moments: the other day I was in a meeting and I tried to explain that I can't talk since I'm in the middle of a meeting but the agent insisted on asking few minutes of my time. I was like really! How the hell is that possible? The other night I was at home around 19:00 having good time with my family after a busy day at work and a call came through, I asked why am I been called this time of the day because to me this is family time, I was told that to them that is the perfect time because I'm not at work. Firstly, how do they know I wasn't at work? How if I'm working shifts? I am truly disappointed by your unprofessionalism and I curse the day I opened the account with Foschini because I never had peace of mind since then. Please deal with this number *** to stop calling me.