Hello @Baghernezhad Maryam Thank you for reaching out to us on Microsoft Q&A platform. Sorry for the inconvenience caused to you!
Based on the information you provided, I understand that you are using Azure for educational purposes and being charged $291.00 for services used while learning about the platform.
If you are a student or running an educational institution (Non-Profit Org), then you can file a support request for refund.
Please create a New Support Request in the portal and choose Issue type: Billing Problem type: Refund request, then click Next. Once it shows suggested solutions, DO NOT CLICK the Request a refund button, click Return to support request in upper left corner as shown below:
Click Next, continue filling out information, make sure your email/phone are correct, and finish creating the case. A support professional will assist you with your refund request.
FYI: Azure Billing and Subscription Management support is included in the Basic Support Plan without any charge.
https://azure.microsoft.com/en-us/support/plans/
Hope this helps!
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