Bad service ever

Hyundai Rustenburg service department are just digging money out of our pockets by replacing unnecessary parts without our consent. I had sent my brother on my behalf as I'm pregnant for 150 000 kilos service I was charged almost R7000. They replaced my parked lights which were working fine and wiper blades which were not worn out and failed to attend to the specific problem I requested saying parts not in stock, which were cruise control set buttons not working, boot unable to open. I regret million times by taking my care there.