CFDs are a leverage product and can involve a significant risk of loss. Trading CFDs may not be suitable for all, therefore you should ensure that you understand the risks involved and take into account your individual circumstances.
Trader's Glossary

Re-quote

A re-quote takes place when a broker is unable to confirm a trade that is entered at a certain bid or ask price. Re-quotes tend to occur in volatile markets, especially when a highly impactful economic indicator is released. In these instances by the time a trade is received the price may have already changed, making it necessary for the broker to re-quote a different price to the trader. Usually a re-quote will involve a higher ask price and a lower bid price.