If you have a valid season ticket for the current season you will receive a code granting you access to all home fixtures. You are only required to redeem your voucher code once.
Once it has been redeemed it is activated on your account and you will not need another code for future games.
You can login to other devices using the email address that you used to redeem the voucher, however please ensure you log out of all other devices before you do so.
If you did not receive your code please look through your junk mail, if you need to contact someone about this please mail Rangers Ticketing.
You can reach them on the following link/ address - TICKETCENTRE@RANGERS.CO.UK