Hi Sophiea Caines
Welcome to Microsoft Community.
Based on your description, I understand that you paid for Microsoft 365 twice, and I understand how you feel and how anxious you are!
But don't worry, this problem can be solved. Since this issue involves an account, which contains a lot of your PII (personal information), in order to prevent your privacy from being leaked in a public place!
Please contact Contact Us - Microsoft Support for problem related help and support, thank you very much!
(1) Click on the link to visit the website and sign in to your account
(2) Enter the problem you are experiencing in the search field
(3) Click on “Get Help”.
(4) You can view the help, or ask for online and phone support
Tips: I personally recommend that you contact phone support and online support for remote assistance!
I sincerely hope that your refund will be processed as soon as you contact the right department!
Best Regards
Arthur Sheng | Microsoft Community Support Specialist