We Buy cars is the worst

So I got a car a week and half ago under finance from We Buy Cars, I'm stuck on the R21 and they just tune me call ur insurance. I was told that the car has no problems and just needs a service which they did. Car made a funny noice and the started smoking and when I stopped there was no oil in car even though it was 100% this morning. How must I get my kids from school and go to work now that I'm left without a car?????