Adele fans suffered a security breach on Tuesday (01Dec15) when trying to buy tickets for the singer's European tour.
Seats for Adele's 36 gigs in the U.K. and Europe were put on sale for members of Adele.com on Tuesday morning, and a number of customers took to social media to complain about problems they experienced buying tickets through Songkick.com.
Reports suggest buyers selected the tickets they wanted to purchase, but when they were taken through to their online shopping basket, they were presented with details from other customers, including names, addresses and payment details.
Songkick bosses wrote in a statement to the BBC, "Due to extreme load experienced this morning (sic), some of our customers were incorrectly able to preview limited account information belonging to other customers.
"There's no evidence that this included credit card numbers or passwords. We take the privacy of our users very seriously, and we're looking further into the matter to ensure it doesn't happen again."
The tour, Adele's first since 2011, kicks off in Belfast, Northern Ireland on 29 February (16) and ends in Antwerp, Belgium in June (16).
The Hello singer announced the trek last week (ends29Nov15) via a social media video, in which she declared, "I have been bluffing this whole time and I'm so relieved to finally tell you that I am, of course, coming on tour and I can't wait to see all of you there so see you all very, very soon!"
The advance tickets have sold out, but the general tickets go on sale on Friday (04Nov15).
Adele has previously discussed her fear of touring, and hinted she would not be hitting the road to support her new album 25.