Tickets for some events are available to book before they're released to the general public. Presales frequently require a codeword or password that may be distributed by Fan Clubs or Event Organizers. Often these codewords are exclusively distributed to members of clubs or certain other types of groups and cannot be offered to members of the public.
Presales are usually sold from a separate allocation of seats, which may not be the same as the tickets being released to the general public. This give fans the chance to book before the general release, which often means there are fewer people competing for the pool of tickets available. But it is paramount to note that this doesn't necessarily guarantee you better seats.
It's important to remember that we cannot offer an exchange if you book during the presale and then find tickets that you prefer during the general sale, so please make sure you're happy with the seats before going ahead and booking them.