Patience will unban Kimon. Like people before me mentioned, just e-mail support!
This won't get Kimon unbanned though:
"Hello Badspot, <explains situation> so can you please unban Kimon? Thank you"
No reply from Badspot for 2 weeks
"Hello Badspot, I sent you an email 2 weeks ago, but I guess you didn't receive it. If you need proof that this happened, I will attach the screenshots."
Still no reply
"Go forget yourself Badspot, you are a lazy forget. Blockland is a failed game and you are a failure. Lul, I am going to take legal actionz."
Instead of a reply, a revoked key and a permaban from forums. I am pretty sure you guys are smart enough to not do that though.