SMIT JONES AND PRATT *********** telephonic staff

I have a problem with Smit Jones and Pratt's *********** staff, Everyday they call my company asking to speak to Magdalena Ndlovu, Every day my staff have to tell them the person in question doesn't work here and never worked here before, The more they harass my staff to speak to that person, I am now fed up with Smit Jones and Pratt's staff whom doesn't listen, We asked them to remove our company telephone number from Smit Jones and Pratt's System, But unfortunately they dont listen or do as we asked them,

Today they called being rude to me, I asked the rude lady i want to speak to someone in Management because I cant take it anymore with my staff complaining against your staff,

I hope that your management see this complaint as I tried complaining by calling your company and I was refused, BECAUSE YOUR PEOPLE TOLD ME I SHOULD TELL THEM THE PERSONES NAME I WANT TO SPEAK TO,