I now believe that this exchange has some very serious issues and that this technical issue where users were sent free hempcoins might not be isolated to only hempcoin, they may of messed up and mismanaged other coins as well and now they are financially doomed.
Why else would they not send users their funds and not provide any sort of support or public response? This exchange appears to have massive issues and I would recommend you pull your currency off of here as quickly as possible (if you even can, I can't even withdraw my btc) certainly do not deposit funds on this exchange, you will never get your money back.