Poor after sales

We bought a brand new haval julion 2024 super deluxe the car has not even 3000km on the clock since we took ownership of the car the car is making an awful sound when applying breaks the car went to haval 4 times and they don't seem to knw what's the problem.we called haval ondekkers where we bought the car from and the treatment we got wow unbelievable we still waiting for a return call cause the person that was supposed to listen to us was too busy and this is 3 weeks later.our car is now at haval midrand since Thursday and they can't seem to find the problem even after they changed the breaking system. Personally haval afterwards is very very very bad and this is not what we expected.everyone when u call push u around no one is willing to accept responsibility and this is a brand new car.