Hi. I am happy to help out other players online at Chess.com by being a moderator. I have been a member of Chess.com since 2007 and have played tens of thousands of games here.
That said, I am just a member like you and I don't have access to a lot of the Chess.com systems, so I don't know :
- Why your friend was banned
- Why you were banned
- When your refund request will be fulfilled
and so on.