Still no response but the spam continues

I posted a complaint 10 days ago here (8th May) and have still not had a response. But I continue to receive spam from MTN. I will continue to log a complaint here on HelloPeter every 5 days (unfortunately HP does not allow any sooner, otherwise I would!) until a manager who actually wants to help me contacts me. I am not asking much. Just that you stop spamming me. But it seems like it is too much to ask from MTN. On Friday, a screen popped up on my phone (that took over everything I was doing) asking me if I wanted to purchase cheaper data. It had a cancel and accept option. Instead of removing me from the lists, you guys seem to have pushed my irritation levels to new heights. I am keeping all the screenshots and messages as per my lawyers recommendation. I insist a manager phone me before the end of this month and I want it in writing that I will never again receive spam from your ridiculous company. Get your act together and stop making me angry!