Refundable deposit not refunded-pathetic service

In February this year, I saw a vehicle on lisabank website that I was interested in buying. I phoned one of the sales agents ( Kea)and put in an application to finance it. A few days later, I got a call advising me that I need to deposit a refundable deposit of R500 so that they can move the vehicle from a branch in Randburg to Wynberg. I offered to go view the car in Randburg but I was told its not company policy so I ended up paying the deposit. The email clearly stated that the deposit will be refundable if the deal did not go through. Later on I was informed that the finance didnot go through. Since then up to now, I have been battling to get my refund, as small as it is, I think its unfair business practice to withhold it, considering that the car was not even moved from Randburg and I never viewed it. Firstly I was told the manager/salesman who was helping me(Martin) has left, not sure why that should affect me as the deposit was done to company account not his personal acc. I was then introduced to Justin, who assured me that he will address it, up to now, 4 months later, I still havent been refunded. No reply to emails or phone calls. This is bad service and everyone considering paying a deposit to them to secure a vehicle or something must think twice