[Extreme margins causing margin call]

SAT MORN 3AM NZ TIME MARGINS PUSHED WAY TOO HIGH CAUSING MARHIN CALL.. WHAT HAPPENED? 

[app problems]

Does anyone else have problems using the app when it comes to buying and selling short positions ? 

I have on many occasions sold long and short positions together by mistake resulting in substantial losses , I feel there should be an easier way to keep these trades seperate .

Also when Ive made the mistake and I notice it only at the final stage where it asks you to push the ok button and finally shows you the resulting profit and loss you cant back track . There should be way to back out of the trade

[Commisions]

It seems that when we are doing well with currencies the splits become huge and it makes it harder to make money , why would you do that ? 

also I have noticed a pattern , when my account is around the 16k mark all of a sudden huge losses come and It takes weeks to recover ,  is there something going on ? or is it just 

coincidence ?

[Cant sell]

Why cant I sell my currency when it says The order request you have made has not been accepted due to price movements in this market

[profit not reflecting in y account]

I am new to trading , but I am a little confused . When I make a profit why does my account not show the same increase ?