Unbelievable poor service and quality. Had 4 audi tt alloys diamond cut - one year later (500 miles later) - ALL 4 have large white blisters where the lacquer has raised (water behind them). The contact at Diamond Alloys - rudely said, 'What do you want me to do about it.... 'so what, you had 6 months warranty' When I explained , ' It is all 4 alloys, in a short time, are you not concerned that your workmanship lasted only a year ?... his answer, 'Not at all'. Aggressive poor attitude. Quite a contrast to the positive, helpful attitude when he was selling.