Deposit not refunded in full

I write in response to your letter of March 02, 2015. In this letter you send a bill for Total Charges R 5675.79 in relation to a car hire rental that I had taken out with Hertz. I should point out that I took the car for 4 days (26/02/2015 17:00 - 02/03/2015 17:05).And a sudden rate of R510.0 p/d where did that come from. <br> Confirmation Number Reservation: 107D0Q <br> 4 WKEND @ 346.00 1384.00<br> Prepaid fuel R495<br> Windscreen waiver R7.02 *4 = R28.08<br> Super Waiver 385.96<br> Total ZAR 1889.00 <br> Damage Responsibility ZAR4300.00<br> I was informed that my refund will be R3776.92<br> I have tried on numerous times to call you and send emails in regard with this matter and no response from you I want my deposit back as per our agreement...and on top of the R6016 you deducted from my account you are still deducting without my permission/informing me on my cheque account could you please revert back to me in regard with this matter if it cost R10000 to hire a car from Hertz you should not hide those cost from your clients be upfront with us so we will know not to make business with Hertz. <br> <br>