Thanks for your reply. Since you already contacted your bank and they confirmed that they have not received any refund from Microsoft, you can contact Microsoft Billing Support directly. Processing this requires Personally Identifiable Information (PII), which should not be shared in a public forum to protect your privacy and security.
Click this link: https://support.microsoft.com/contactus/
Sign in to your Microsoft account.
Select Microsoft 365 > Click 'Get home support'.
Type "Chat with an agent" from the text field and press Enter.
Click "Contact support" at the bottom.
Select the product you need help with.
Follow the prompts to connect with a live agent.
Customer service phone numbers: https://support.microsoft.com/topic/customer-service-phone-numbers-c0389ade-5640-e588-8b0e-28de8afeb3f2