Engine Power Reduced, Engine Timing belt issues and alot more! Opel Corsa (32 000km)

I bought a Opel Corsa Ecoflex 1.0 (32 000km) Turbo with William hunt Roodeport on 16th April 2021 Assisted by Kaz. I was told everything is perfect with the car when I asked about its history and that it 'Wont give me troubles'.... little did I know i was in for a BIG SURPRISE!

I work from home and hardly drive the Car, its currently sitting at 36 000km. 29th July it had a Mulfunction error, When I took it to the nearest William hunt dealership to have a look at, they said the issues its showing seem to show that the engine has been tempered with I WAS NEVER TOLD ABOUT THIS! it has issues with power 'Engine power reduced' is an error I get while i drive it, I have been taking it back and forth to the William hunt Pretoria branch to fix, Mulfunction error is still showing they have to know get a rep from the factory for a report on the issue. I pay for this car every month and haven't been able to drive it for almost a whole month because its been going back and forth for repairs.

Is this the quality of cars you guys sell to customers? I am very disappointed. Please may someone send me an email where I can escalate this further.