Worst customer service ever

Imagine buying a Kia K2700 from Kia, wait 3 weeks for a Food Box to be fitted through Kia, receiving the vehicle on the Friday, start using it on the Monday, then the vehicle breaks down on the first day of usage. Kia then blamed my driver and expected me to pay an additional R5,000 to add 2 springs, which I refused to pay. This happened on 16 Dec, and I had to wait another month due to the workshop being closed in Dec. They promised a full tank of petrol which never happened. Upon asking them, they said they gave me a voucher, but would give me another voucher. Hmm?? And the heater not working. For a 2021 vehicle I would expect better, and the arrogance of both Nicholas & Feroz. After my company lost over R40,000 in sales due to the fact that we did not have our vehicle to transport cold-foods during the busiest period of the year and no apologies from them, I will never buy from Tableview Kia again. Now 2 weeks after receiving the vehicle we realised the heater also doesn't work. I need to consult my lawyer to see what my rights are after the salesman (Nicholas) threw down the phone in my ear. He should be fired for treating customers like this.