Roblox Ban API
Players which have been banned for "You created or used an account..." have been banned by Roblox's automated alt detection systems, when another account on the same network is banned from the game.
If you have been banned for "You created or used an account...", Roblox's Ban API Alt Detection systems have flagged your accounts as an alt, and therefore issued the ban. We do not have control over these bans.
The only way to appeal is by contacting Roblox Support, or by having the originally banned account unbanned.
We do not have control over these bans, and we cannot revoke these bans, as they are issued by Roblox.