A landmark decision by the country's Consumer Disputes Board means music fans can ask for their money back if an artist's performance is well below what they reasonably expected, the national broadcaster Yle reports . It follows a complaint by a Chuck Berry fan, who saw the rock and roll pioneer perform in Helsinki in 2013. Berry, who is now 88 years old, seemed unwell during the concert, and apologised to fans while on stage. The consumer body decided that the event's organiser should refund 50% of the ticket price.