Did you just wake up from a yearlong hibernation? Yobit has been doing this for ages. There are hundreds if not thousands of scam accusations and complaints here. A simple search will give you enough reading material to read for weeks.
But first one i got replying mail and i could see one link "0.001btc , say thanks"
It seems i have to press for paying 0.001btc to deal with? so i paid 0.0001btc.
Say thanks
0.00100000
BTC
That part, if true, sounds like a ruthless scam. It's almost like extortion (or it probably is). It sounds like saying thanks and paying the fee is not optional. It's in fact required! You paid 0.0001 BTC and you are then reminded to say thanks and pay 0.001 BTC. That's audacity at it's worst.