comments:
Henry-Black posted on r/askuk5d
Doesn't look like the same seller to me. It's a bit hard to compare because you've cut the screenshots off and didn't post links. Can you post the website link? The £17.53 bag is listed as "Shipper / Seller: Amazon US", so it's definitely a different seller to your first screenshot. You appear to be comparing two different things. You'd be paying for the import fees and delivery on that. I see the same price on both app and website for that item.