A Microsoft file hosting and synchronization service.
Hi PR
I would focus on these checks:
- Sign out of OneDrive everywhere and sign back in with the exact Microsoft account that was added to the Family subscription.
- Verify on the Microsoft account subscriptions page that your account still shows the Family benefits assigned to it, not just that you're listed as a family member.
- Check OneDrive storage directly at
onedrive.live.comand compare it with what's shown in your Microsoft account storage page. - Ask the Family plan owner to remove you from the subscription and then re-invite you. Several users have reported benefit-assignment issues being resolved this way when the storage entitlement became out of sync.
The fact that you previously had access to more than 5 GB strongly suggests this is an entitlement/sync issue, not a storage usage problem. The "1300% used" message is exactly what you'd expect if your account suddenly reverted to the free 5 GB quota while still containing tens of GB of files.
For the support chat not working, try an InPrivate/Incognito window or a different browser/device. If chat still won't load or send messages, use the Microsoft Account support contact options at Microsoft Support and choose Microsoft 365 → OneDrive → Storage so the case can be escalated as an account entitlement issue rather than a sync issue, which is something out of the forum's ability.