In this direction of exchange - if you need the exact amount to receive - it is necessary to choose payment of commission. In this case the rate is fixed for 18 minutes, this time is allocated for payment of the request. And you will receive exactly the amount that is displayed when creating a request, and the payment will be made in priority order. If you choose the type of tariff - "Not fixed rate", the rate will be recalculated according to the exchange rate at the time of receipt of funds. By creating a request for exchange - you agree with the rules of exchange, as well as confirm that you have read all the information on tariffs. After payment of the application - no claims to the exchange or monitoring are accepted. 

In the tariff "Not fixed rate" - the exchange office broadcasts rate updates from liquidity providers' stacks. The exchange rate will be changed in case of deviation by 0.01%, fixation takes place only after the transaction enters the network. Liquidity providers for the market order are DEX-platforms, and exchanges WhiteBit, Binance, Huobi. In other tariffs - the rate is fixed immediately for 18 minutes, regardless of exchange fluctuations.