Does anybody know if this voucher can be redeemed before the game at the ground? Or what the rules are please?

I think you have to buy a ticket from the ticket office before the match, im not sure if you have to get it before match day or not. It may be worth ringing the club to find out.

Do u just take your pass in.

Just rung take uor pass into the ticket office and purchase a ticket with ya voucher.

You need to have the voucher.