Buyer Regret on 2024 Jetta SE

I just bought a certified preowned Jetta SE with 6k miles. Everything was great until I took it in for an oil change/tire rotation at 9.5 K Miles. I've owned the car only for a few months and now I am being told that i will need new rear brakes soon. The front pads are at 8mm. and the rear is at 4mm. I was told that VW would replace them at 2mm. This was so SHOCKING to me. Brakes should last a lot longer.

If you have the same year/model and you have significantly more miles than me could you please share your experience? How many miles between new brakes? anyone try to get VW to buy back the car? I have serious buyers regret.