simon futures margin?

[#1]

I just want to know, i see that my margin has been increased as long as everything else,(total profit and loss) cash available. The increase in my margin is it some form of a loan or is my futures going to be closed out at beginning of trade or are things going to continue with the original amount i had before adjusments. P.S. Especially under the situation where one can't top up under such short notice

[SimonPB]

if you run out of margin you will be closed out as per normal.