When you see the message 'Unable to obtain the tickets you requested. Other customers may be in the process of completing their transaction on all remaining tickets, or the number of tickets requested is greater than the maximum available adjacent seats. Please try again, or try reducing the number of tickets you have selected."
This means, when you tried to buy tickets, there were none available as others were in the process of buying those tickets. If they do not complete their purchase these tickets will become available. Keep trying to buy tickets until you see, "allocation exhausted."
"Allocation Exhausted" means all transactions for Ticketek's entire available tickets have been completed. At the promoter's discretion additional tickets may be released for sale. Keep checking the website. Check all details of your purchase carefully as we cannot offer an exchange or refund on your confirmed booking.