I can't answer you question but I can tell you this. With the potential this coin has (if it succeeds) and the current price level, just buy some from Yobit. I understand that rewarding for promotion is normal but people can still deceive you and if you truly wanna invest in this coin so promote without waiting for a reward just like I do and many others as well .

P.S. I would advise you not to keep your coins on Yobiy but transfer it to your encrypted wallet on your laptop/pc. I have used Yobit without any problems but still you never know.