Toyota, and Toyota Hino worst service and attitude

at the point now to return my Hino which was purchased new, has had to go back three times to get load bin correct, faults on the car, now that it has gone in for second service the break booster not working, car still not been fixed correctly, sanded car and left all marks like that, how many times as a client do we have to beg and plead to get our car fixed that we paid for. its the same with our cruiser thousands of rand spent and we have to land up replacing parts that were "supposed to have been replaced with new parts" . have been a loyal Toyota client for years, but now i,m gatvol...................................................................