Supporters are simply requested to present voucher 57 from their season ticket book at the Stadium of Light ticket office at the time of purchase to take advantage of this special offer.
Chairman Niall Quinn said: "We all want to see a packed Stadium of Light and I'd urge our season ticket holders to do all they can to encourage friends or family to come back to the Stadium.
"Things are starting to take off for us now and we want as many people as possible to be part of what we're trying to achieve here. This certainly isn't about finances, it's about creating a winning environment for the team, giving them the best possible chance in the crucial games ahead. "
Supporters may also apply for tickets by post, enclosing the required voucher and a stamped addressed envelope. Tickets are on sale from Monday February 5th, 10am.