Thank you for posting this in Microsoft Q&A.
As I understand you had deleted a tenant a week ago and now you want to restore it as you want to recover some data from OneDrive.
Unfortunately, a tenant once deleted, cannot be restored.
Because, before deleting the tenant, you delete all users accounts, applications and all other resources.
Once account is deleted from tenant, you cannot login to the tenant. And once tenant is deleted, there is no redirection happens to the tenant for authentication.
Let me know if you have any further questions.
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