Your entitlement to a refund totally depends on where you are in your billing cycle. You can request a refund only if either of the two conditions is met:
You bought an annual subscription to Office 365 within the last 30 days.
You have a monthly subscription and cancel within 30 days of your last renewal.
As soon as you claim a refund, all your Office apps will immediately go into a reduced functionality mode. You can still use the apps to read and print documents, but you will not be able to edit documents. You will also lose additional Office 365 benefits (OneDrive storage space and Skype minutes).
Not only the subscribers but anyone who you have shared your plan with will also lose access to their Office apps when your plan gets canceled.
For more information, you can check out our guide on the subject.
