A Microsoft file hosting and synchronization service.
The only way to ping OneDrive support (not a live chat) is upper right corner of OneDrive in browser. Go the the ? mark and the "Contact Support" and then Type in Personal Vault into the search then hit Get Support.
Let it search, then go to the bottom then there will be a blue box "Contact Support".
Then select Microsoft 365 and Office, then Technical Support and hit Confirm.
Then choose OneDrive app support and that will pop a dialogue box to input your issue.
Again, not live chat and advises will contact your associated MS email account.
I still have not heard back from them after 24 hours.