It has certainly not been the best start to ownership but I am still totally hooked on the car . All I can hope for is that once this has been fixed then I get a good run of trouble-free motoring.
As for DP not checking the light was off, I think they did and also test drove the car. Unfortunately, it doesn't come back on immediately after being reset and can take a few starts before it does - I guess they didn't expect it to either. They'll get the benefit of the doubt this time....