It seems to me that the funds of the users are always lost, and in fact, Cryptopia has nothing to say. This shows how risky it is to keep funds in your account.
Without having funds in both currencies (or any currency), you can't trade and that's a fact. Period.
As mentioned before i would also lke to see a more professional and "straight forward" approach from them.
Let's see if they will do it in the near future...