Ok - so the first thing to check is that you are entering your gift card in the right section.
Our gift cards are a payment method, so make sure you are entering the 13 digit code in the 'payment' section towards the end of the booking (not as voucher/special code on ticket selection).
Your PIN number can be found on the rear of your gift card underneath a panel, which you need to scratch off.
Finally, you can check the balance & expiry date of your gift card, please click here, scroll to the bottom of the page and click on "Check your gift card balance?"
Please note, ODEON Gift Cards begin with a "2" (If your gift card begins with an 'M', disregard this and just enter the numeric value).