Harassment calls from Foshini

I have been receiving non stop calls from Foshini, despite me cutting the calls or ignoring them. It has become intolerable and amounts to harassment. I have received 12 calls on one day! I am a customer and have taken some calls and pleaded with them to stop calling. I have called their customer service department today and not even a few hours later the calls still came through. I have tried blocking these calls but it’s obvious that they are employing some technical bypass method to get their calls through. I will have no option but to close my account if this does not stop. Really disgusted by this desperation to harass people.