Coldplay's latest album has been top of the charts for five weeks
Fans who bought tickets for Coldplay concerts at Glasgow's SECC in December through Ticketmaster have been told to return them as soon as possible.
The company says it is because they were printed on the wrong paper.
All affected customers have been sent freepost envelopes to return their tickets and the company says it is refunding their service charges.
Coldplay play the SECC in Glasgow as part of their world tour on 5 and 6 December.
A spokesperson for promoter DF Concerts said: "Tickets purchased through Ticketmaster for the Coldplay gigs at the SECC have been printed on incorrect stock, but we are confident that Ticketmaster will be able to replace all tickets for their customers in advance of the gigs in December.
"However, it will be more difficult to replace tickets originally purchased through Ticketmaster and then sold on through the secondary ticket market.
"In this case, ticket holders should contact their point of purchase.
"We urge these secondary sources to look after their customers at this time.”
Viva La Vida
The band's fourth album, Viva La Vida or Death And All His Friends, has been top of the album charts for five weeks selling more than 600,000 copies.
The first single and title track also made it to the top of the singles chart in June as well as going to number one in the US.
Coldplay are touring America at the moment before heading to Canada, Japan and Europe in September.
They then return to America and Canada before finishing with 14 concerts in the UK before Christmas.