Billing issue still not resolved

This is my forth complaint on this site but nobody seems to care about customer service. *** is still NOT resolved. I have returned the unused router to the respective branch on 10/01/2016 to the agent named Mariam. She did not provide me would any receipt but said she would note it on system using the reference and account number I had given her. I have also emailed Celiwe who was very helpful to me previously, on 11/01/2016 to inform her that I have returned the device as discussed. I got a call from telkom stating that they do not have it on record that I had returned this device which I did. To date nobody has refunded me or made contact with me. I keep getting legal notices that I am outstanding in payment when it is telkom who is owing me a refund for the adsl which was never used due to the consultant misinforming me about the product. I need my matter resolved. I have never had a bad payment profile in all my life but telkom wants to list me wrongfully. I am tired of this now. I want to go the legal route of which telkom must pay for all legal costs. I am a pensioner and you guys are messing me around.