Network fees have the purpose to reward the "miners" in return for their services. This is achieved by them solving computational problems and in this way allows them to confirm new transactions and adding new blocks to the blockchain network.
When you make a buy or sell trade, the network fee for the cryptocurrency transfers will be automatically calculated for your trade and displayed on the interface of the trade review page. This information is also available in the email receipt which you receive when the trade is completed.
The cryptocurrency network fees add-up to the total of fees you pay for having your trade processed. Please note that we do not collect network fees. Network fees are paid to the miners and are determined by demand in the market for transaction confirmation.