Many of Microsoft’s customers were impacted by the changes to their free cloud storage availability. In an effort to make up with those clients, Microsoft has offered any impacted customers one year of Office 365 free of charge. This was sent out in an email to customers recently.
The company had reduced the storage for OneDrive from 15 GB to 5 GB free las year. The decision was later reversed, but some customers were still impacted. The free Office 365 subscription comes with 1 TB of OneDrive storage.