
Thank you for posting your question in the Microsoft Q&A forum.
Regarding your issue, based on your descriptions, seeing a 3GB quota on your account is unusual since neither the free Microsoft plan nor the A1 education plan officially has a 3GB tier. This likely means your university’s IT department temporarily reduced quotas possibly due to internal storage management or a configuration issue.
Since you mentioned having an education account, so I suggest contact your university’s IT support team with these details. They are the ones who manage your storage allocation and can clarify or correct the quota.
For more details, please refer to: Change a specific user's OneDrive storage space
If they are unaware of the issue, you can refer them to Microsoft’s recent changes to education storage plans. Changes to storage offerings across Microsoft 365 Education
If you have any other questions or need further assistance, feel free to ask.
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