Bitesax is a centralized Crypto exchange that facilitates trading of Cryptocurrencies, it was founded by Ayhan Karakayo.
This exchange is relatively new with absolutely no track record or Operational history to lend credence to its usefulness.
As of yesterday while checking it's web most of its features are not functioning and whatever information you have on its main page is nothing to go by.
My experience with sites like this is that they become a viable tool in the hand of scammers and a front for deception of Newcomers into Cryptocurrencies.
Hence stay off this exchange until it comes up with signals that it is alive and claims to do what it advertise.