As an FCA-authorised and regulated investment firm, we are required to provide best execution. This means that we ensure the execution of order at the best possible prices for our customers, taking into account a range of execution factors.
Please know that if you believe there’s an issue with the price you’ve received for an order, it’s typically not related to best execution. For a bit more on pricing, you can see that in detail at Instrument prices. If getting an exact price is an important factor, limit orders instead of market orders may be more appropriate. You can read the pros and cons of each from Market and Limit orders.