Bad service at car service city wonderboom

Took my car for service at car service city wonderboom and it has never been OK. I don't know what exactly did they do to my car. And furthermore they charged me for major service which they did not do, they didn't even do a minor service on the car, rather they broke my car. They did not change oil filter, the only thing they gave me was the air filter, they claim to have changed the plugs which I doubt they did. These people actually rob people, that is day light roberry. Why make me pay for things you haven't done? And they tell u that customers come first, but it's the other way round... Money first, customer last. I'm stuck with a car that has an engine light on, that is not serviced yet I paid for service.. If you care and love your car, no matter what you do stay away from car service city wonderboom to be specific. You don't charge people for things you didn't do. They don't even deserve a single star. They take advantage of women who being their cars for service alone, they see a chance to rip people off