Blackburn and Charlton are Category A fixtures.
The club can now confirm that the two free match vouchers that supporters have been given as part of their season ticket books can be used in any game throughout the season except for Charlton Athletic (September 16) and Blackburn Rovers (March 17, 2018).
These vouchers will enable fans to bring two guests to MEMS Priestfield Stadium completely free of charge for one fixture. These can be used for a 3pm or 7.45pm kick-off.
For more information as to how these vouchers can be used please contact the club's ticket office on 01634 300000 (option 1).