Hello all.
I’ve noticed that the pricing for XDJP.L is under the market value and has not changed almost as if the price has stuck?. I bought 2 units about 2% under market value.
Welcome to our Community, @7iain7 
We have checked XDJP, and I can confirm everything is fine. The price didn’t move a lot yesterday due to the lack of received quotes. The new quotes that arrived during today’s session are already reflected on the chart of the instrument, and it is actively updating.
When it comes to the second part of your post - all orders that you submit are executed at the best available price, as usual. There are no issues either when it comes to the order execution 