One of the wheels fell off my Walker while I was a...

One of the wheels fell off my Walker while I was at the transit mall on Thursday and two of the customer service staff inside at the information desk helped me repair it so that I could use the Walker to get back home thank you very much for your marvelous service.
I asked them if they had any washers so that we can repair it they found what we needed and they got me back up on four wheels so that I could maneuver and be mobile again.