Shocking dishonest company

I bought a car from them while in the UK before moving back to South Africa. The car was delivered the day after promised. 2 people delivered the car nad quickly left leaving the car on the drive. I went to take the car for a shot run but it would not start. looking to find out why I found the battery disconnected and the wrong battery for the car and a dead battery. I had to buy a new battery before I could start the car