He said: "We have been contacted by a number of season ticket holders and members who said that because they had had gone to Bourgoin, they had few opportunities to meet that deadline.
"The club are obviously delighted by the support those people gave in travelling to Bourgoin for a Friday evening game to cheer on the team and, to assist them and other season ticket holders and members, we have now arranged to extend the discount ticket deadline to 5pm on Monday, December 18."
Tickets for the Tigers versus Argentina match are priced from £19 terrace and £22 for adult seating. Season ticket holders are entitled to a 25% saving if they book in person or by phone with the Tigers ticket office, meaning they can buy tickets from £14 terrace and £17 seating. Members can take advantage of a 15% discount, with tickets starting at £16 standing and £19 seating.
All children's tickets for the game, which promises to be a fantastic rugby event and a family occasion, are priced at just £5.
All unsold tickets are released for general sale tomorrow morning, so season ticket holders need to act quickly if they want to book their usual seats as well as taking advantage of discount prices.
Season ticket holders and members are able to purchase additional tickets at these special prices - but only until the deadline next Monday.
Contact the Tigers ticket office at Welford Road on 08701 28 34 30