The honesty and integrity in representation of the scooter.
Insufficient instruction on how to remove the chair. Doing it the way I understood from your instructions did not work for me. I accidentally discovered that if I would use the lever to move the chair seating orientation to one side while putting the seat back and arm rests down that I would be able to get the leverage. I needed to pull the chair posts straight out of the post hole. It took me a while to discover this. I recommend you offer, alternate positions/ways to remove the chair for people who will not be able to get proper leverage with the one way you offer in your instructions.
I am 61 years old, and my body is morbidly obese, which greatly limits my mobility.