A Microsoft file hosting and synchronization service.
Hello Hui Ying Saw,
Good morning! Thank you for publishing in Microsoft Community. We are happy to help you.
Typically if you purchase directly your subscription from Microsoft to get refund you need to cancel your subscription.
To check refund eligibility on a subscription you purchased from Microsoft, you will need to cancel it first. Reference: Cancel your Microsoft business subscription in the Microsoft 365 admin center | Microsoft Learn
**Important:**Not all cancellations will result in a refund.
If you want a refund because don't recognize a charge on your account, you can now investigate it on the Manage your payments page of your Microsoft account dashboard. Learn more.
please may i know your subscription type: Is personal subscription (family subscription etc..), or subscription from reseller (if you purchase your subscription from reseller you need to contact your reseller ).
However i would like to inform as well that any issue with subscription are supported by our billing team, You can refer to this article to check the way how to raise a ticket. Ways to contact support for business products - Admin help.
Note; Please if my understanding of the issue is wrong kindly provide more details.
We look forward to your reply. We will continue to assist you based on the information you provide. I sincerely appreciate your patience and cooperation. SincerelyEben Ezer Tres | Microsoft Community Moderator