Euroglass would not supply me direct either.
Expensive closed shop on the heated screens ..!!!!
Mine broke on the top n/s corner also no impact and had all the hallmarks of a stress crack..
So long as I paid for a new screen they would send the old one back for examination ...then reimburse if a manufacturing defect was found.
Its not a manufacturing defect me thinks, but all the cars are hand made and are slightly different ,so some screens are under more stress than others when fitted.
Even jacking up on one corner could twist the body and put the screen under stress.
Heated screens do seem to be more fragile...


Peter.
Aero plus8 50th Anniversary.