@Andrea Castaño In order to recover the disk/data you need to enable the subscription (subscription should be inactive state) then only you will be able recover the disk(You can contact the subscription support team, they provide Free support they will help you in recover your disk)
Refer to this article: How to recover Azure Student Subscription
Hope this helps!
Kindly let us know if the above helps or you need further assistance on this issue.
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