Phone customer services, I am sure there are members on here who had free all weather tyres and then had the knuckles fitted free. The tyres mask the issue, the knuckles solve it.
If you don't get any joy go to the motoring ombudsman.
2017 GLC AMG43 premium plus, night pack, leather, intel lights, 360 camera, side steps. = sadly gone
Now GLE450 Premium plus, Selenite, Black/White Nappa leather, Tech plus pack, Driving assistance pack, Tow pack, Off road pack, 22 inch wheels.