Bad service

I had a courtesy car sometimes in 2014 and, the consultant (called Witty) made an error when entering the vehicles registration number. The registration number of the car I was given was for the vehicle that was given to another client. Another day when I was driving from my workplace, the security guards stopped me and told me that I am not supposed to be driving the car and I must park aside. I asked why and they said “you see that car parked on the street?” and I said “yes”. They then said that those guys are from Europe Car rental and they are looking for the car I was driving as I was not supposed to be driving i.e. went to the guys and told them that my rental contract is for 30 (thirty) days and it has not expired yet. The guys showed me a business card with the police logo and told me that they were sent by the investigator to come and fetch the car. I refused and told them to go and that I will contact their office. I then went back to the car and drove home. On my way home within maybe 5 minutes I received a call from Europe car (Witty called) telling me that I must return the car. I ignored her and drove home. Then, the following morning I emailed Client Services like I am doing now and the consultant who responded to my query was very much unprofessional and not willing to resolve the issue. He did not even bother to read the email that I sent so that he can have an understanding of what is happening and my frustration at the same time I then escalated the matter to the Client Services manager (I cannot remember the name, but I don’t think it was you).The manager investigated the matter by herself and found that the error was made by Witty who has administered the incorrect car registration and my account number was also the details of the account holder of the other client were also linked to my account. The other client returned the car and his refund was also paid into my account instead of his. The manager told me that I should keep the car and the money that was paid into my car and added that I should return the car when my car that was with the panel beaters was finished, even if it if going to be for more than 30 days. There was also an internal hearing that was taken place with the consultants who did wrong on this matter however that does not cleanse the damage that has been done to me and my reputation at my workplace. But, the problem that I am still having is the fact that my name has been tarnished and my reputation at my work place has been damaged as we speak because of the statement that was made against me by Europe (Budget) car rental. Is it possible that someone can contact me to discuss this matter further as I am living under depression? My contact number is ********** 588.