A Microsoft file hosting and synchronization service.
Hello, thank you for reaching out to Microsoft Q&A.
This means your files are still available in the OneDrive Recycle Bin, but during the restore process, you are being asked to verify your identity using an alternate email address or phone number - that has been changed.
Can you successfully sign in to your account through the Security settings page?
https://account.live.com/proofs/Manage
If you are stuck on the verification screen, you will need to replace the security information on your account. On the Verify Your Identity screen, select “I don’t have any of these” and follow the prompts to replace your security information.
Note - If you remove all of your previous security information and replace it with something new, your account will be put into a restricted state for 30 days.
But please note that the items in the recycle bin are automatically deleted 30 days after they're put there.