Worst experience of purchasing a car

I bought a car (2008 BMW 3 Series 320i e90) on the 08th of June 2020 at the Phumelela Park in Milnerton. When the car had to be switched on it didn't and the sales guy on the floor told me he has to boost the battery because the car hasn't been driven in 3 months due to the lockdown and he assured me that the battery is fine the only thing he knew was that the car was smoking.

I purchased the car due to the fact that the condition of the body, interior as well as the Mechanical aspect was good due to the Dekra condition report I had been provided on their website which is something I also raised with the Sales guy on the floor and he said the is no other fault or mechanical problem with the car.

Within 2 minutes of driving out of the floor with a car that I purchased cash I saw a Coolant sign and I immediately went to a petrol station too buy a coolant thinking that would solve that problem but little did I know that the Radiator was leaking and it had to be replaced.

I couldn't start the car the following day because the battery was dead and I had to jump start it and only to be told also that the battery needs to be replaced.

I wrote a complaint last week Tuesday (07/07/2020) on the We Buy Cars website regarding buying a BMW 3 Series (e90) 2008 model which had mechanical problems when I purchased it on the 08th of June 2020 but it was never mentioned to me nor was it on the Dekra Condition Report. I found out that the Radiator was damaged and needed to be replaced and the battery was dead and I had to purchase a new one. It's now a new week and I still haven't received any feedback from We Buy Cars.

I want to know is this how you treat your clients, since I haven't received a response from you from your own company's website I want to see if the same terms and conditions apply on the Hello Peter website.