mechanic steals tyres and exahust

Sadly after getting the bus back from the mechanic and all the hassle over having to pay him extra money, it turns out he has swapped over all the nearly new tyres on the minibus and replaced them with old duff ones. Also the exhaust needs to be replaced, quite likely for the same reason, He even put normal glass into one of the windows. We hope to get the tyres changed soon.