From a different page from the one you quote:
FCS Semifinal Playoff Ticket Information
New Hampshire vs NDSU; Friday, December 20th @ 7 p.m.
All tickets in the designated “UNH section” are $35. These seats are located directly behind the UNH bench. All fans may purchase tickets in advance by calling Derek McVay at the Whittemore Center Box Office at 603-862-1763.
PLEASE NOTE: ALL tickets purchased will be available to be picked up at the North Dakota Box Office. There will be a ticket window designated for UNH WILL CALL. Make sure to have a picture ID when picking up your tickets.
*The deadline to purchase tickets is Wednesday, December 18th, by 5pm.
After 5pm on Wednesday, tickets can be purchased directly through the North Dakota Box Office by calling 701-231-NDSU.