Hello. Could you explain me how margin fees works? According to https://www.bitfinex.com/fees there're 2 types of fees maker and taker. For example maker - 0,1% and taker - 0.2%. I tried to trade (btc/usd) a tiny sum 0.002 BTC . I placed margin sell limit order above the current price. Then my order was executed, the fee was 0.1% as it should be. But when I tried to place margin sell 3 BTC limit order above the current price the fee was 0.2%. It looks like market order.
And another example, I placed margin sell limit order above the current price (this time I sold XRP). The order was executed in parts. The first part's fee was 0.2% (as taker) and the rest 0,1% (as maker). What's wrong with these orders? Also I've noticed that when I place margin sell limit order under the current price it is executed as market order. and when I close my sell positions orders, the buy limit's fee is always 0,1% as it should be.
I guess it's because of slow connection with server (low ping). I try to buy, make profit and sell fast. So may be current price is displayed a bit inaccurately? For e.g. sell order 9000, displayed price 8999 but real price is 9001. (My ping with bitfinex is about 60ms)