DislikedIt says 'Cancelled by Dealer' so to me it looks like the order was cancelled by your broker. Could be interesting to know which broker this is.Ignored
1. To calculate required margin, you do the following. For example, nzd/usd is trading at 0.7650. So you take the rate and multiply it by contract size and divide it by leverage.ex: 0.7650x10000(1mini lot which is 0.1 on the platform)/200(default leverage 200.1 at northfinance)= 38.25$
2. The maximum leverage for nf is 500.1 but you have to ask for it by contacting them, the default leverage is 200.1.