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Former Coronation Street actress Wendi Peters said her daughter had to leave the Justin Bieber concert before the end and now "isn't as big a fan as she was."
Twitter user Nicola Gray said her daughter arrived home at 1.30am because of the star's "laziness". She addressed another tweet at the O2 arena demanding a refund of the £68.25 ticket.
Another mother said it was "awful how late he was":
The O2 venue in London has apologised to young fans after teenage superstar Justin Bieber was nearly two hours late on stage at his latest concert.
The Canadian artist was opening the first of four nights at the London venue but failed to start his performance until nearly 10.30pm, just half an hour before the O2's curfew.
Many youngsters were forced to miss the gig altogether in order to get their last train out of London.
Tickets for the show began at more than £50.
Latest ITV News reports
Justin Bieber angered fans by showing up nearly two hours late for his London concert last night - but he's not the first musician to do so.
Many young fans of the pop sensation had to leave before the concert began. The concert continued past the 11pm curfew.