Hello i sent 0.03343989 BTC to exchange site
https://ico.lisk.io, and then it exchanged my btcs to Lisks. I see 1400 Lisk on the screen first, but now i see 1380 Lisk... Where is the 20 Lisk? Do you have any idea? And transactions not be done to given given passphares's address

Please help
I'm not sure if people are being serious now, but I'll answer it as if this was a serious question:
The end amount of Lisk you get will be proportional. So it will vary based on how much is invested. Those who invested early would see like 10x as much Lisk back then, as they do now. But the valuation hasn't changed, so it just means the Lisk you do have is worth more.