Hello everybody.
I am quiet new in the crypto world to begin with ... I see this was answered but honestly hard to understand at my level.
I am having the same problem and received the exact same message which seems like blackmailing to me.
As per the blockchair link I have 0.06 BTC blocked on my USDT hotbit account and received the same message telling I have to send 0.3 ETH for them to send back my BTCs at origin ...
It is now blocked since 5 days what should I do ? How can I get guarantee I will receive all back if I send them the 0.3 ETH ?
Thank you in advance for help ..