The number of reported concert ticket scams in Hong Kong has surged by 40 per cent week on week, according to police, with more than 70 cases from the second half of May related to Mandopop stars JJ Lin and Jay Chou’s performances at Kai Tak Stadium. Police said on Wednesday they had received 114 reports of concert ticket scams for the week starting on May 24, compared with the 80 recorded over the previous week. The amount of money involved in the cases over the two-week period was more than...