poor customer service

I had a citi gold that I sold - 4/5 years ago and I cancelled my trakker at the umhlanga ridge branch three times, 4/5 years. Later I receive a call from an lawyer (trakker handed me over for the sum of. R200,47) I agreed to pay the R200.47 once I had confirmation from trakker that the trakker had been cancelled and a settlement/ statement I was advised to contact trakker directly I have called them four times in the last week and have spoken to different staff members which all said sorry after I explained the story and said they would email me confirmation of the outstanding amount and proof of cancelation which I have still not received, I sent a email to trakker head office yet there was no response from them either,it mould be much appreciated if one. Of your staff members could stick to there works and a manager could contact me to sort this out asap!!!!