Hi Laura,
Mine was finally repaired at no cost to myself but it was a long, drawn out fiasco involving so many different organisations, consumer groups and the media. Initially I got a goodwill contribution but eventually I was refunded in full. They didn't seem overly concerned that I could have been killed. If you scroll back far enough you'll find my story. I should approach your dealership with a copy of the extended warranty (top right) and find out if your model is covered first of all.