They ask to send amount of ethereum if you want to participate.
Yes, let me explain it in more details how Black Friday Deal works:
Base Rate is 2400 ZIG For ETH
ICO partipant transfers 0,1 ETH ,
base amount 240 ZIG ,
additional first 30 days bonus 30% 72 ZIG
Early bird bonus for first 100 participant, I think it is still at least on 50% level if not more, 120 ZIG
Total: 432 ZIGWith separate transfer participant will get additional Black Friday Bonus 432 ZIG
Total: 864 ZIGICO partipant transfers 1 ETH ,
base amount 2400 ZIG ,
additional first 30 days bonus 30% 720 ZIG
Early bird bonus for first 100 participant, at least on 50% level if not more, 1200 ZIG
Transaction Amount Bonus >= 1 ETH 6,25% 150 ZIG (See website for other amount bonuses)
Total: 4470 ZIGWith separate transfer participant will get additional Black Friday Bonus 4470 ZIG
Total: 8940 ZIGDeal ends on monday.