Fans who attended the Barbra Streisand Irish concert on Saturday in the grounds of Castletown House in Celbridge are angry over the way that the long-awaited event was organised.
Many of those attending experienced long delays getting into the venue, and once inside, could not find their seats.
The resulting chaos meant many left early, although those that didn't were, in some cases, stuck in the car park until after midnight.
CPI Concert Promoters International and MCD issued an apology, saying that Streisand had delayed her onstage time to accommodate arrivals that were late as a result of the traffic delays.
They also said that the seating problems were due "to a small number of opportunistic fans taking seats which were not assigned to them and refusing to move when requested."
They have invited concerned ticket holders to write to Denis Desmond, Managing Director, MCD, 7 Park Road, Dun Laoghaire, Co Dublin.
The National Consumer Agency advised consumers who have complaints following the concert to contact them with details.
Ann Fitzgerald, Acting Chief Executive of the NCA said, "Following the receipt of numerous complaints by the NCA together with newspaper and broadcast reports of the issues which arose at the Streisand concert, we believe that MCD, the event promoters, had a duty of care towards consumers who bought tickets for the concert and a contractual agreement to provide consumers with the seat they bought. A question has now arisen as to whether they met these requirements on Saturday night."
"We are in the process of seeking a meeting with MCD and we would ask consumers who have been adversely affected to contact us either in writing or by phoning our call centre with details of their complaints so that the NCA can carry out an analysis of the complaints received and follow them up as appropriate."
Consumers who have complaints following the concert should contact the NCA helpline on 1890 432 432, log onto the website www.consumerconnect.ie or write to the National Consumer Agency, 4 Harcourt Road, Dublin 2.
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