Billing as we'll as motor broke

I drive a mec c class 320 diesel I had I brake down as my car blowed a turbo so I phoned mec help line the send Vereeniging new Vaal to help me as the car is onder warranty so when Vereeniging 24/7 tec arrived I talked to him and said it is turbo so he jumped in my car start her up an for about 5 sec it was fine and then there was a big bad sound and the car was daed no start motor doesn't even turn so then he pops the bonnet and guess what there is no oil in the car so he said nothing to warry so the car went to new Vaal 3 days later Thay call me that the motor has bended conrots so the will let me know as well I asked them I need a car as I need to go to Cape Town as my moms brother has cancer and he is at he's last so thay didn't help 2 weeks later thay have a car for me so he all so give me a price as I have 30% exsses so it was 63100 so cool 2 weeks later thay called for a second time the motor thay order on thay sisstem says complete engen and when it arrived it's just a sub isumbly so thay ne to Oder more parts and it's going to be more you going to pay 79000 . So how or hoe has that kind of money wow thay really making me feel bad about how thay to business .