If you are somewhat interested to try these kind of investment schemes, then maybe you could consider researching other more reputable and bigger exchanges or platforms that offers similar investment products in order to further protect your finance. Just treat Yobit as a last option. Imho.
There isn't any legitimate investment schemes that do this kind of thing, remember that a 2% daily interest is a big amount considering that it is 1 BTC. Also, haven't you heard about the controversies surrounding Yobit being a scummy platform, try to stay away from them, try to check the Scam Accusations Board to see what I am saying about Yobit OP.