Dear Sanghyuk Ryu,
I understand your concern and I’m here to help. Here are some steps you can take to address the issues you’re facing:
Switching to a Student Account: Azure does provide free credits for educational accounts1. You can sign up for an Azure for Students account using your university or school email1. Once you’ve signed up, you’ll start with $100 Azure credit to use in 12 months1. After you use your credit, you can wait until the 12 months are over and sign up again if you’re still a student1. If you don’t want to wait, you can move to pay-as-you-go1.
Canceling Your Subscription: You can cancel your Azure subscription in the Azure portal2. Before you cancel your subscription, it’s recommended that you back up your data2. For example, if you’re storing data in Azure storage or SQL, download a copy2. After backing up your data, you can select your subscription on the Subscriptions page in the Azure portal3. Select the subscription that you want to delete. At the top of the subscription page, select Delete3. If necessary, type the name of the subscription and then select Delete3.
Preventing Future Charges: To prevent future charges, you can set a spending limit in Azure4. The spending limit in Azure prevents spending over your credit amount4. All new customers who sign up for an Azure free account or subscription types that include credits over multiple months have the spending limit turned on by default4. You can remove the spending limit at any time as long as there’s a valid payment method associated with your Azure subscription4.
Please note that you should contact Azure support directly for issues related to billing and payments. They will be able to provide the most accurate information and assistance.
I hope this helps! If you have any other questions, feel free to ask.
Best regards,