Call Centre Harassment

What is it going to take to make you and your call centre employees understand that I'm in a dispute with Vodacom? My attorneys (Clientellegal) has send you an email, I have send you an email, I have told one of your employees that I refuse to pay any monies to Vodacom but still I'm harassed night and day by your call centre!!!!! Do you have ANY people working for you that can grasp Basic English and understand what are communicated with them???? I have said in 3 mails