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.
yobit has bad reputation in the forum. and also, they really send emails enticing user to invest on them because of good ROIs. however, it is best to trust your funds to a reputable exchange. though i havent encountered any prob with this exchange throughout the years, still will not be confident keeping my money on their platform.