YoBit has a warning not to deposit contract, so you can say it's my fault.
They should refund, however it takes some time. I had a similar situation when using Changenow when I did not pay attention to the warning, and they returned the funds to me a few hours. I believe that Yobit must return your funds, so you should contact their support. If they do not do it, it will be a signal that in this way they are trying to appropriate your funds.
You are using an new exchange so their customer support will be high and they will assist you in all the forms to bring trust on you but Yobit is not really new and it already lost their reputation I think so they won't care about any accusations against them.But nothing here to accuse when their terms is clear here.