A Microsoft file hosting and synchronization service.
Hi, I'm John! I will help you with this.
Did you recently purchase the Microsoft 365 Basic subscription? If so, have you waited at least 24 to 48 hours?
After purchasing additional storage (or freeing space), it can take up to 24 to 48 hours for everything to fully update across your account. I’d recommend waiting that time and then trying again to OneDrive again.
If the update is still pending after 24 hours, you can try unlinking and relinking your OneDrive account, or resetting it. "Unlink and re-link OneDrive" https://support.microsoft.com/office/unlink-and-re-link-onedrive-3c4680bf-cc36-4204-9ca5-e7b24cdd23ea
If you're using OneDrive for File Explorer, please check if the storage quota is already available in OneDrive web at https://onedrive.live.com and try uploading files from there.
Feel free to reach out again if the issue persists after trying these steps.
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Regards, John J.D.