The requote statement usually pops up to inform traders that the execution price has changed and allows traders to decide whether they wish to accept the new price.
The advertised price affected by high market volatility can change in a split second, and we need to offer you the latest market price. In such an event, you can either accept the new requoting or reject the new price and cancel the execution of the transaction.
Another possible reason for getting requotes could be a bad internet connection, which can delay the transmission of orders; in this situation, you will see old prices instead of current market prices.