ONLINE TRADING
If you cancel an
order, make sure the cancellation worked before placing another trade
When
you cancel an online trade, it is important to make sure that your
original transaction was not executed. Although you may receive an
electronic receipt for the cancellation, don't assume that that means
the trade was canceled. Orders can only be canceled if they have not
been executed. Ask your firm about how you should check to see if a
cancellation order actually worked