Appalling service from MiWay

I have "been insured" with MiWay for many years. I submitted a claim over 5 months ago during which time they have done almost nothing and I have a car that is practically unuseable. Each time I phone there is a little flurry and suggestion that they will contact suppliers to source the part but nothing happens. My son, over a number of years and several claims, has had no joy with MiWay, who should re-brand themselves as NoWay.