Bidvest not releasing Authorization money

I rented a car from Bidvest from 13 July - 17 July. Upon returning my car, I asked them to release the R4000.00 they withheld on my card. They said it will take 3-4 working days. I followed up on Thursday, Friday and Monday (27 July 2015) and no one is telling me why my money wasn't released. <br> <br> On Friday (24 July) Morning, the gentlemen by the name Marnan said he will investigate and will call me back, he never called back. <br> <br> Today morning (27 July), I followed up and the lady Patience promised to investigate and call me back, she never did. <br> <br> I had to call Bidvest employees more than 5x to get the invoice sent to me. And only after seeing more deductions from my Card that was going through. The service is horrible, and the staff do not keep to their promise. <br> <br> According to their information, it takes 3-4 days release the money. We are on the 7th working days now.