Impacts on cornering after tyre change

Hello guys, today it was time to change tyres. Unfortunately, something went wrong with my girlfriend. After the tyre change there are blows with her during cornerings. Not in the steering wheel, but as a noise. I thought at first, they botched and the tyres didn’t fix properly, but that wasn’t it. Since we were the last ones, the shop had already closed too… The noise is so far only in curves. Otherwise it is not available for trips up to 70kmh straight ahead. Do you have any idea what that could be? I have absolutely no idea… Short to the car: Hyundai i30 1.6 CRDI.