Nothing you can do besides take over the debt and pay the victims back as they were scammed. Don't waste any more money name changing either, it won't change anything.
Runewatch does state this below after a case is resolved.
"Your case will be removed from public view. However, your case...
Sold an 07 account to Kvn for $300. He is a man with big balls so he chose to go first with no MM. Very smooth and easy transaction with no issues. Big vouch for issaKvn for keeping it real.
You won't get banned for that. I used AHK for years until recently to remap keys. Jagex won't care nor even know. They also stated in the past it's fine as 1:1 actions are obviously legal.