Had cars serviced several times now with Motability. I always take a courtesy car as I need to get to work 40 miles away, never needed anything more than to tell the dealership that when I booked the service and my licence on the day, didn’t even need that last time, out of my car and in the courtesy car within 2 minutes.
Never been asked for insurance certs.
In life, it's not who you know that's important, it's how your wife found out.