Everyone that joins ICOs, bounties or airdrops might recently be receiving some emails purported to be from a project administrators informing you of that your earlier contact of the support has been escalated and you need to be a certain sum of bitcoin or ethereum in order to abade the problem otherwise, you lose your investment or earnings.
It is a scam. Beware!!!
Well, if anyone makes us to send some coins in certain time limit, then we must consider it as a scammer.
Pressure and fear created from such will causing the victim to have short thinking, and not noticing they being scammed.