Worse experience with Opel Corsa Brand and it's service

We bought a Opel Corsa 2022 model last year March. We are the 1st owners for it. The problem started when the brakes were making funny noices and we took it back and they replaced them and they said they didn't see anything wrong. They replaced because they wanted to see the difference then a month later that notice started again which was really frustrating. They changed everything and replaced with a different brand... Up to date the notice is still there. All they ended up saying is that brakes makes different noise and they said they only put brake spray.....

The Aircon stopped working mind you this car is brand new and when we took it there all they said was that the condenser on the Aircon is leaking and they said this might be because the something hit the condenser yet the grill which is supposed to protect the condenser is not damaged

When we called customer service for Opel we spoke to Karen didn't have answers yet he said he is the main manager and when we asked to speak to his supervisor ,he said he was the big boss...

The experience and service we got was really shocking and to be told we have to pay R18 000 to have it fixed....

I mean for the brand new car