yeah, sounds like they didnt have a clue, have mine checked appx 6000mls, normally ok , takes alot to alter the goemetry, hit a large pot hole felt like a bomb exploding in the car ! , had it checked ....... just slightly off, done at elite in rainham essex on a hilka rig and theyre pretty good guys to have it done with. kerb impact sideways is more likely to knock it out , rather than up/down .... ok , potholes can do tyre wall/ rim damage on low profiles. i always look before/after when having tracking/tyres fitted , for any "new" damage. hope you get it sorted !