James do you know that when kwik fit replace a tyre, whether worn or punctured, they have to keep the one taken off for a set length of time in case motability want to do an audit. Also if one particular branch had a much higher rate of replacing tyres than others nearby (or nationally?) then that also could trigger an audit.
Considering the amount of business that kwik fit receive from motability I doubt they’re likely to risk it for a couple of extra tyres.
Also the rules for being able to repair a puncture are quite strict so maybe (just maybe… I don’t know?) in this day and age of litigation, motability and kwik fit have reached an agreement where it’s deemed safer for disabled drivers to have a new tyre fitted instead of repaired?