Tickets are on sale for Tuesday night's Jersey Mike's Trophy tie against Luton Town at Kenilworth Road (7pm).
Tickets are priced at £5 for adults, over 65s and under 24s with Under 18s admitted for just £1 when accompanied by a paying adult.
Tickets can be purchased here or via the Weston Homes Stadium Ticket Office. Tickets can also be purchased on the night.
The winners of the group will get a home tie in the next stage of the competition. Posh have already qualified after two wins from the two games in the competition to date.