Deposit still not paid after 3 weeks

I rented a car from Bloemfontein branch on the 4th February 2016 which I drove and delivered off on the 8th February 2016 in Cape Town. The full deposit amount of R 6500.00 was deducted (not reserved) off my account on the same day of rental and as of yet I have not received the repayment of this amount. I have made numerous calls to the branch and head office with no effect. At first I was told to wait for 3 days to pass, then 7 days, then 14 days. It is way past 14 days now and I still have no joy. This is not a good experience. I have not had one call back to explain what is happening or how it will be resolved, I shouldn't have to follow up this process which should be automated anyway? Current status is that the branch is talking to the bank to release the money, this status has been since 22nd February 2016. The status is still the same today 4th March 2016. What will it take to sort this out ?