R300 hidden costs AND my rental car was 50 minutes late (Port Elizabeth)

I booked my car rental 2 weeks in advance, so OBVIOUSLY when I arrived at the 'first car rental' branch in PE to pick up my rental car, I was expecting it to be ready for me (as it always is at AVIS for instance). BUT NO... I had to wait 50 minutes! 50 minutes! before I was finally able to get into my rental car and drive away. And ontop of that, they have HIDDEN COSTS! A full R300 of hidden costs and 'admin fees' that they add on to the R9000 deposit fee... When I gave them my credit card to pay for the R9000 deposit, I asked the woman behind the counter "What's this? It's supposed to be R9000. You said it's R9000 for the deposit". And she said: "But sir you signed the documentation, you should read it." It turns out that APART from the price which they charge you on their website for the car, which was already around R1000+, they have a whole bunch of hidden costs when you have to pay when you pick your car up... "Fuel Charge", "E-Toll Charge", "Admin Charge", etc. It just goes on and on! They had 5 different hidden costs, all totaling to almost R300! I ask the woman behind the counter: "What's this 'Fuel Charge' that you're charging me for", and she said "It's in-case you bring the car back with less fuel than what it had in it"... And I'm like: "Well OF COURSE it's going to have less fuel in it than what it had, because there's no possible way for me to return the car to you with a 100% full tank of petrol!"... I'm telling you, this company just *****s money from you in every which way that they can... AVIS has NO hidden costs ever... the only reason why I used this 'first car rental' this one time is because the stupid ****** 'flysafair' website has an exclusive contract with this piece of trash company, so you literally have no other option but to use 'first car rental'. I'm telling you what: After this experience, I'm NEVER using 'first car rental' ever again and I've NEVER flying 'flysafair' again! And nobody in my family will use them either. I've already posted about this horrible experience on my home-town's facebook page and I've told all of the executives in the meeting that I was 50minutes late for about this trash company 'first car rental' and how they should avoid it at all costs unless they want to pay tonnes of hidden costs AND have their time wasted by gross incompetence.