Typically, the requote statement appears to let you know that the execution price has changed and gives you the option to accept/decline the new price. We provide you with the most recent market price because the advertised price is subject to significant market volatility and can change at any time. You have two options in this situation: you can approve or decline the revised price and stop the transaction from going through. A slow internet connection may also be the cause of your requotes, as it may delay the transmission of orders and cause you to see outdated pricing rather than the most recent ones available.