Rental Car more than 9hrs late, leaving a toddler stranded at school for 3 hours

I took my car in for repairs in Stellebosch. And two weeks prior, I had a rental car booked from Europcar, with very clearly defined requirements. Requirements were the car had to be automatic (due to injury) and HAD to gave ISOFIX for my son's car seat (car seat only works if the base is on the isofix).

This car was meant to be delivered to the panelbeaters by 08h30 (as I am on speed service), when I got there, reception knew nothing about the car as nothing had been delivered to them. When I called, I was told the car delivery people had gotten there, dropped the car and left with the keys, so someone was going to come back to me. When the guy finally got to me, He brought with him a whole lot of paperwork and a credit card machine, asking me to pay R6100. Which had not been communicated to me. The agend deliverin the car informed me he would not release the car without me paying the amount mentioned. When I called the travel agency that had booked the car on my behalf, she told me not to sign anything as this was meant to be a speed service and everything had been sorted out on my behalf. 20min later, I then was given the car as the Europcar Stellenbosch Manager finally confirmed there was no payment required from me. The guy left and I then moved my staff from my car to the rental.

As I moved my stuff, I discovered the car did not have ISOFIX as per request that was on all the booking documentations. Already very late, I drove to the office to help me understand as I figured maybe I was not doing this right. The office then confirmed the car they had given me did not have isofix. He assured me that I would get a replacement car with what I am looking for by 14h00 on the same day as he was gonna send the driver to pick up the car from the airport. At 14h30. The driver arrived with the different car. Alas, there was NO ISOFIX in the new car. Already inconvineinced, with my 2 year old son stranded at school, they tell me they will bring me another car and they have absolutely nothing I could use to get my son while they sort this out. The drive leaves again for the airport. He gave me his phone number to be able to keep in touch. I called an hour later, the phone was off. I called the office 4 times, they kept promising they would call me back with feedback and never did. Each time I had to call back my self to get progress. The car only got to me at 17h00 (peak traffic time), I got to my son 3 hours late. A 2 year old toodler, being the only child left at school, with no food and probably traumatized by this ordeal of his father not showing up on time.

Never will I ever use this car rental in personal capacity or otherwise. What a terrible experience!!!