Bad service and non payment of deposit that needs to be refunded.

I was involved in a car accident a while back. My insurance company orginisised my rental car through Europcar. On receiving the rental with the following rental # ********** 28 i paid my deposit for the vehicle using a debit card at the panel beaters. Just shy of 2 weeks later I get a sms from Europcar saying there car is due back in the next 48h our there will be additional costs levied to myself. I returned the car the day before it was due having to rush the panel beaters to get my car done. That evening when I returned the car I spoke to a guy in the Europcar call centre and he confirmed the car was booked in and everything was fine and the refund would happen in 3 -7 working days. A week later I follow up with them as I had heard nothing from Europcar. Only to be told by a very unhelpful call centre agent that the refund was due to be released within the next 48 hours or around there her words. That night Europcar debited my account for R248.32. I called the next morning to inquire as too why this debit went off my account and what it was for to find out what was happening with the refund. Only to be told that the refund had not been loaded as yet and the debit that went off my account was for E-TOLLS for the two weeks of use of the car. I find that ******** as I pay R300 a month to get to work and back in my vehicle and now they want to charge me almost R250 for two weeks? Day light ******* Europcar. So now I'm told my deposit will be refunded in the next 7 working days. Absolutely bad service from there part. I use Avis regularly for business and I have never had issues with E-Toll bills and payment delays from them. Let's see if Europcar has the decency to respond and resolve this.