Ticketmaster's president has acknowledged "stuck transfers" following a ticket delivery failure last Friday, sparking new backlash over the company's reliability. A separate report pointed to the disruption as proof the risk that comes with placing all trust in one ticketing service.

The trouble comes as a reseller listing a Bruno Mars ticket said she was blindsided by the fees Ticketmaster stacked above her listed price. Rival SeatGeek, meanwhile, unveiled TourIQ, a predictive pricing tool aimed at live event sellers, positioning itself as an alternative at a time when confidence in Ticketmaster is taking hits.