Worst company to buy a car with service and condition of the car

I had a very bad experience buying a car with this company firstly the wasted my time petrol and money with the first car i tried to buy i went there and the sales man showed me the car that i was pre approved on and he told me he was on lunch he will be with me now i gave him 45min and me and my wife walked around the dome to admired all the cars then an hour and a half of waiting at the car we started getting anxious we found him with a customer that wants to buy a porche and when he saw us he said we must please understand then i heard that the car is sold to somene els but this and that i was very angry i just left then the second car i eventually bought from them when it was time for the service i took it to a company not recommended by we buy cars and what they told me i was shocked they told me that i have to change more than 10 stuff and the parts cost is half of what i owe the bank the engine is cracked ,shocks ,control arms ,feul pump ,turbo , brake sensors ....... but the dekra report showed only lights and service and now with there warrenty and service plan i struggled and fight just to get my car serviced and i heard stuff going on between we buy cars and dekra and i am very uncomfortable and very unsatisfied with this service and the car i got from them and i have to pay for most of the stuff out of my pocket because tlthere warrenty will only pay R8000.00 on all the stuff wrong with this car i bought