It might be just the 5950x. A week a got it was 749.99 if I recall correctly. Jumped to 799.99 this week and is still listed at that. When you add to cart the cost of goods goes up to 806.67. It was the same with the RTX 3080 GPUs. The ~7 pound checkout addition is the thing that annoys me not necessarily the 50 pound price increase earlier on.
For reference, I first became a customer for overclockers.co.uk in 2001. It's always been a premium retailer. I haven't been shopped here for years but decided to return before you folks sink in the sea, or whatever happens January 1st.