He was taken to Auckland City Hospital where he remained today. It is understood he is recovering from broken bones and internal injuries.
He may require surgery and is likely to be in hospital for the next month.
A woman at the Bruce Mason centre confirmed the man had stopped to get Wiggles tickets for one of their three shows in Auckland on July 15 in their Wiggles Around New Zealand tour.
After the incident another person went in and purchased the tickets on his behalf.
An Auckland District Health Board spokeswoman said the man was in a stable condition.