Transaction Capital Recoveries ****!!!!

This mother****ers keep on contacting me about outstanding debt of R 67.74 from Cell C. I had conversations with Cell C and they never handed over any debt and gave me a letter stating that everything is paid up. Why do you keep phoning me? ON MY WORK PHONE????? Usually on a line that you can not understand or here the ****ers. I AM SICK AND TIRED of this harassment. Now that I have your name I know exactly where to go.