You were banned because we found stacks of voting keys on your island. You claim they came from you voting on your multiple alt accounts but when we checked some of the alts, most of them had never even logged onto the server. Therefore, you did not get the keys from them. Also, if you were voting on 20+ accounts you would need to have 20+ different ips in order to do so. Unless you were using a VPN, this is not really possible.
If you have legitimate proof of how you obtained so many, feel free to respond here with the proof.