Daihatsu Ascend Car Repair Jan 2016

1st car repair for Daihatsu Ascend in this year. Changed both drive shaft to used ones. RM340 for both. Power steering fluid also got leakage and was fix at the same time. Total repair cost is RM630! When I brought the car back home, I realised that the brake lock isn't working. It was working fine before sending the car for repair. Sent the car back to the mechanic and it was fix. The mechanic does not know the repair cost because his boss wasn't around. I am not going to pay for something they spoil during the repair! I hope no more major repair need to be done this year. God, please help me keep my car in good condition.