HONG KONG, March 23 — “Highly concerned” about misprinted information on Coldplay concert tickets, Hong Kong authorities have ordered ticketing agent Cityline to provide remedial measures, including refunding handling fees, news agency Channel News Asia (CNA) reported today.

Coldplay will perform at Kai Tak Stadium on April 8, 9, 11, and 12 as part of its Music of the Spheres world tour and tickets for the first three shows sold out within minutes in October, with some resold at inflated prices.