Personally, I've received all my Quan from Exvo. Please keep us updated if you are able to withdraw your Quan, btc, etc.
Today they just change status for all BTC withdrawals on "Almost Done" and now you can't Cancel this withdrawals. As result it's seems a final scam step - there was last way to withdraw your money from exvo exchange using altcoins that cost at exvo x2-x5 expensive than other exchanges. But now you can't get your stucked BTC, buy altcoins for strange price(at least something than nothing) and withdraw it.
no one has been able to get btc out of exvo, i would suggest to buy Quan and cut your looses is better then no btc at all.