I can not understand why people would use Cryptopia over Bit-Z for trading BTX??? I have never has a single problem buying, selling, or withdrawing from them. Look at the volume (and price) of BTX and compare:

1   Bit-Z   BTX/BTC           $885,378   $22.44   65.37%   Recently
2   Cryptopia   BTX/BTC   $276,207   $18.87   20.39%   Recently

Furthermore look at Bit-Z total volume compared to Cryptopia? Why would anyone go there over Bit-Z? I dont get it.
It has about 1/10th the volume of Bit-Z. I also have never had a problem with them holding my coins hostage like everyone complains on here about topia. I actually trade mostly on Bittrex and Binance but to trade Bitcore it's a no brainier. Bit-Z is the answer IMHO

Bit-Z   $206,896,966 Total Volume
Topia     $17,538,674 Total Volume