Hi Evian, I've just come in, regards your repair cost, with the parts / labour, you are talking in the region of £150 total, 2>>3 hrs at the most, going back to the faults " Wheel Bolts" this mat have started when the tyres were replaced prior to the job that has been done, that will be hard to prove, But if Mr Evian re-checks the bolts it will show if the threads have been damaged, but on saying that the tyre fitters should have pointed this out to you & said a replacement set was needed! did they? As said, Alloy wheel bolts have to been torqued then RE-Torqued to be right but not many do this I'm afraid.
When did the car last go in for MOT?