Avis Budget's claim of thorough car inspection is a joke

I just collected a car at OR Tambo International Avis Budget. Once on the highway there was a message on the onboard computer that one of the tyres is faulty. I called the roadside assistance and they wanted me to take the car to another branch in the morning. I have meetings scheduled for 7h30 so this is impossible. They did offer to bring me another vehicle. I am however still waiting. This is just so inconvenient having to sit up and wait for Avis Budget to come and replace the car. More important is the fact that Avis Budget claims to do thorough inspections on their vehicle before it is released. What a joke. Apart from the one tyre with a slow puncture none of the other tyres are the correct KPa. This makes the vehicle unstable and is a safety risk.