Bad service at Williams Hunt Centurion

The service at Williams Hunt Centurion sucks. I took my car for a service (60 000 km) on February the 8th. Everything was fine it was just due for a service. When I collected it the car engine was on. In fact it's still on. I took it back several times and they have been sending me from pillar to post. Worst they are telling me lies. Boetie who seems to be the workshop Supervisor is a master ****.