Fans of pop stars such as Beyonce are being priced out of gigs by touts bulk-buying tickets using super-bots.
There are calls for a crackdown as experts reveal a surge in criminals using software to illegally harvest tickets and resell them for huge mark-ups.
Hundreds of tickets for Madonna ’s Celebration Tour appeared on resale websites within minutes of them going on sale last month – a £95 ticket to see her at London’s O2 Arena offered on Viagogo for more than £2,000.