In Greece, specifically in Athens, I have been to the dealership at least 3 times for this particular noise at 75km. Strangely, all 3 times they told me they didn't hear it, after strong encouragement I drove it myself in the presence of a mechanic who heard the noise but reported it as normal!! I am disappointed and don't know what to do!! The car is an Astra Phev GS 2022