Purchase any Westjet flight with no blackout dates or any restrictions of any kind. I have a gift card of $2,000 and one of $535.10. Gift cards have no expiry date and are fully transferable. I also have $2,375.32 in travel bank credits that can be transferred in any amount as long as you have have a Westjet Rewards account that has been active for at least seven days. These expire in March and June 2022 but can be extended. Info here https://www.westjet.com/en-ca/contact-us/faqs/travel-credits.