. . . . "ER 2015 DOES NOT GUARANTEE THAT THE MATCH FOR WHICH A TICKET IS ISSUED WILL TAKE PLACE AT THE DATE, TIME AND VENUE STATED ON THE TICKET. ER 2015 reserves the right to make alterations to the time, date, duration and Venue of any Match or other details governed by any Ticket in the event of unforeseen or other circumstances, including (without limitation), force majeure, safety and security concern" .