Best-selling musician Adele Laurie Blue Adkins has announced her 2016 tour. And some enthusiastic fans wanting to buy online tickets in advance found themselves in a major account mix up which has been termed as security breach. The website facilitating ticket sales for best-selling musician Adele has suffered a security breach scare after fans reported seeing other people’s details when trying to buy tickets.

Fans of Adele attempting to purchase tickets for her 2016 tour, which became available to members of official fan site Adele.com, experienced some difficulties. Customers reported they were presented with other people’s shopping baskets at the checkout, with someone else’s payment details and billing address.

“I got through to buying tickets but it came up with someone else’s screen with their card details and home address for SSE,” Kiran Farmah tweeted to the BBC. Several other customers have since reported similar experiences. “Same thing happened to me,” said Michael Crow. “Got through, 4 tickets Glasgow, came up with 2 tickets for London and someone else’s name/address.”

Songkick, the music and technology firm responsible for this morning’s ticket sales via Adele.com, said that the experience was “due to extreme load.”

“Some of our customers were incorrectly able to preview limited account information belonging to other customers,” the firm said.” “There’s no evidence that this included credit card numbers or passwords. We’re looking further into the matter to ensure it doesn’t happen again.”

Security expert Graham Cluley told the BBC that the incident “certainly sounded” like a security breach and that this type of incident “should be impossible, even if the website is very busy”.