Hi Alex, I join the Telegram but not sure if it's sth you done for the privacy setting to your channel, there's no way to chat, i can only see what you post.

A very generic reply when I sent an email to them in Sep.

Hi there, I'd like to join the whatsapp group but I don't see there's a way to pm you. can you let me know by email ? ah_paopao@hotmail.com