Angry Not Happy

The above mentioned lawyers are constantly phoning me regarding CELL C Handing me over to them. I have spoken to Cell C & they had told me there is a system glitch but i am updated with them, my account is not in arrears. I keep on getting a call from the lawyers and i keep on explaining to them hence they still contacting me. I have told them not to phone me anymore they must sort it out with Cell C but they are not doing it