Please only list your site here if you sell soccer tickets from past events.
Tickets are bought to enter events. They come in endless formats and cover either one event on one day or a number of event over time - these tickets are often called season tickets and can be one ticket used more then once or a book of sperate ticket.
Most common collected are match day tickets. Older ticket come in two parts - the stub, which is retained by the owner and the ticket which is given over at the event. Unused tickets are also collected and these contain both ticket and stub in tacket. Modern entry system can use microchiped tickets.