Bad service

I Took my car for major service to Barons N1 city as it was due.after taking the vehicle back from them it was consuming a lot of fuel.i returned the car last week friday the 17th April 2015.Today os the 21th April 2015 they have done anything on the car, they are sitting with it and I dont have a car to go to work with.So for the past 2 days I havent make money.This is really bad serviceand no body is taking me serious.This are very few things that are taking us back as a country.Because certain individuals are treated differently from other peers which is a problem.Value is placed to other customers than others.