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
No worries, the vallue of one lisk is what is important, not how much lisk you have. Would you rather own a thousand coins worth 5 cents each or hundred coins worth 60 cents each ??