They blatantly steel your money

After 30 days of car rental, R80 of my initial R1200 deposit was paid back to me. I got slapped with an eToll bill of almost R800 even though legislation dictates that etolls are capped at R450 per month. Their response to this was that they don't charge the discounted rates as per the government gazette. Further to this I had two vehicles in this period (Because one broke down after 2 weeks), the first was a Chevi Spark which I filled up about 20km before it breaking down, they charged me R170 to fill up?? How do you get R170 worth of petrol in a Chevi Spark which has done only 20km on a full tank?? They the charged me R200 for filling up the Nissan Micra which I subsequently drove. I filled the Nissan up in Centurion just before driving to the Airport to return the car. So my question is how do you consume R200 worth of petrol driving from Centurion to the Airport? These people are ********** of note and I will definitely be doing everything I can to make sure they are brought to book.