How to cancel and refund subscription

I have two MS365 Accounts. One personal and one Family. I inadvertently paid into the Personal subscription as opposed to the Family one I use for my small business. Both have different email profiles. How can I transfer or get a refund and to resubscribe to the correct MS 365 profile?

I was on the yearly family plan for 79.99 which was coming up for renewal. I changed it to the personal monthly subscription. 79.99 has just come out of my account!! As well as the monthly personal. I want a refund now.

I was working in PowerPoint, trying to download a picture. I got a message that I could access the full library wiwth a subscription, so I set up a monthly subscription. I later went into my Microsoft 365 account and realized that last montyh I had aleady renewed my subscription with an annual payment. I cancelled the new, monthly subscription and woul likethe payment already submitted to PayPal refunded. I would also liketo know why I was not recognized as a subcriber when I was in PowerPoint. Thank you.

Pls end the this subscription and I want a refund for this.