You should stop using this exchange the first time when you experienced the problem, even 0.01 BTC is not a small amount you should just forget. YoBit is a very problematic exchange, there are probably hundreds of cases like this reported on the forum, and customer support is certainly one of the worst you can find on crypto exchanges.

I check BSTY, and coinmarketcap is list only 2 exchanges for this coin, but 100% of the volume is on YoBit. In your case I would say something is wrong with YoBit wallet for BSTY, the transaction has not been sent yet from their side so you can not see it on explorer.