Your may get rejected due to margin shortfall because there aren’t enough funds in your trading account. This may happen if:  

• The margin required to place the increased when the market opened
• We’ve deducted regulatory charges for previous
• You’ve placed fund withdrawal requests on the previous day

To make sure your AMO is not rejected, always have sufficient funds in your trading account before the market opens.

If you need further help with this, tap Go To Orders below, select the order, and tap Contact Support.