One of them is £420. Have you heard of google? They can show you shopping results. You would see that £480 is at the upper end of the pricing spectrum. Thats what I used to find these results. Im surprised you arent aware of it.
Oh and FYI a $380 card would cost £380 or so in the UK as we add 20% sales tax. And these cards are third party AIBs whose MSRPs are usually a little higher than the base price. This is normal pricing.
But the fact is 3060s are selling much bigger numbers for about £650.
This is due to the fact that in general PC gamers dont like Radeon unsurprisingly.