Not only for XVG. Yobit team does not reply to most of the consumer. I have seen that many people reported that yobit support team is completely shit workers on reply. If they reply to you also. You will get the information, Really worry for the inconvenience and we will look out this issue and connect you back.
For this reply, let them die instance. Please ignore invest on the yobit. There is Bitrex and Binance which are good for getting more profit.