I have tested cryptopia on january 17th, took like 1.5 hours for the deposit to appear and 1.5hours for the withdraw to appear in my wallet. What exactly happens there now? Is their wallet unsynced ? Are the deposits delayed as well or just the withdrawals ? I have tried other coins, like btc, doge, ntrn, eth they all worked fine (eth was slow to accept deposits, took maybe 1hour). Is this delay only for BTX withdrawals? Go on their IRC webchat http://webchat.freenode.net/?channels=cryptopia-ex&nick=typeyournickhere and write them support tickets, try to be short and to the point without cursing or blaming (I do it too and it never helps).