Avis - *******

After having car trouble on my way to Johannesburg from Durban, my car was towed and a courtesy car arranged with Avis by BMW assist. I was given a VW Polo at the Harrismith branch and was due to return it on the 7th January. However, the vehicle was returned on Friday, 4th January. When the deposit was debited to my account, I contacted Avis to enquire about the large amount. They were charging me for returning the car a day late. When, in fact, the car was returned three days earlier. I have been calling and emailing Avis regarding a refund for three weeks now, to no avail. I have contacted the branch where the vehicle was returned to, the general complaints line as well as the supervisors at Avis OR Tambo. I have yet to receive a response or any sort of feedback. Avis was quick to take my money, but cannot respond to my query. I am very disgusted with the service and will never use the services of Avis again.