How long is my gift card valid, and can it be extended? (Only Estonia) Lindex gift cards are valid for 3 years from the date of purchase. After this period, the gift card expires automatically and can no longer be used. Please note that the validity period cannot be extended.You can find the expiry date on your gift card or in the digital confirmation you received at the time of purchase. We recommend using your gift card before it expires. Related articles Where can I check the balance on my gift card? (Only Estonia)