just learnt a lesson, page-17

"You should note that your Order may be executed irrespective of the length of time for which your Order is reached or exceeded. In volatile markets our quote might ‘gap’ through your Order level, so that the closing level (which still limits your loss) or
the opening level may be beyond the exact level specified by you."


it still does not say a limit order can be executed at a different price. your limit order was executed at a different price ? right ? or maybe i misunderstood your post. it is normal for stop/take profit orders or market orders to execute at different price if upper/lower bounds are not set, but a limit order must never execute beyond that unless the market is in adjust/preopen and your order overlaps with opposite side (even then, a buy order will never execute above the set price, it can only go lower, and vice versa for sell). somethings fishy.