Why even offer car seats!?

What a displeasure dealing with your Cape Town branch. I ordered 2 car seats by phoning your call center but was told that they couldn't help me to reserve a specific type and would have to call Cape Town. 1stly, trying to call the branch was impossible. Despite numerous attempts the phone was never answered. When we arrived in Cape Town we were told that Europcar does not supply rear facing car seats - which by itself is unacceptable! We were taken to choose car seats which all were in bad condition and I am concerned about the safety of the ones that were offered (no rear facing, no 5-pont harness, no crash tested models etc). But then the worst was that when we asked for assistance to install the car seats (which we had never used before ) in the car, we were told that we must do it ourselves and the car seats have detailed instructions on how to install them. Of course, arriving to the car, there were NO instructions and had to try figure it out myself. I still am not sure if we have the right car seats or that they are installed correctly, thus endangering the lives of my 1 year old twins every time I go for a drive! I do not believe this is acceptable service from a reputable car hire company