Cant claim windows 10 edition

Back in 2018 with the release of minecraft windows 10 edition Mojang ran a promotion where if you owned minecraft java edition before October 19th 2018 you got windows 10 edition for free. Recently i went to claim my free copy, i had previously neglected to claim it earlier, and the option to claim is still there but your website is out of codes i have been checking for over a few weeks now and no codes have been added. So i wanted to bring this issue to your attention