The service was EXTREMELY poor, they overcharged me for a service by R1000 and then didn't bother to wash my car

The service was EXTREMELY poor, they overcharged me for a service by R1000 and then didn't bother to wash my car. They didn't do the 76point check and finished all my petrol when I picked my vehicle up they didn't replace anything they had to in the major service then tried to charge me R10 000 to replace my front brakes and 1 bearing. I drive a suzuki alto not a PORSCHE! WORST WORST WORST