They don't Have support.
They have contact option. Enter Blockadz site, look superior bar, right: Helpdesk. Put your mouse over it and a letter will appear with contact option. Click there and send your message to them.
I think this is the official thread of Blockadz on bitcontalk forum, but i don't see recent replies from them on the thread.
https://bitcointalk.org/index.php?topic=1289848.0