Harassment by MBD

This company phones me relentlessly every day more than once. They have my number but are actually looking for someone else who is obviously in default. I have now tried blocking their numbers but in the last week alone they have called from 14 different numbers! I am getting SMSes, calls at all times, even on weekends and no matter what I say they keep calling. I have emailed them 3 times, I even spoke to Faith at customer service who assured me they has now removed my number. Well that was at 3 pm and they have called me twice since! This is harrassment and I am now going to lay a charge with SAPS and going to speak to my lawyer about claiming damages from them. They wont leave me alone. Its a disgrace and whoever heads up that company should be thrown in jail!!!!