Cheapest for this variant.
First of all - I am aware the gold and silver are cheaper. But I am not a fan of the colours and as I use it most days, I want one I like the look of. After searching eBay, Gearbest, Banggood, and AliExpress, this is the cheapest available for that colour.
Comes from the Xiaomi store.
To get that price go to:https://m.aliexpress.com/item/32763245357.html?
By visiting the mobile site you don't have to pay for the additional warranty. The price will be in $USD but add it to your basket.
Then go back to http://www.aliexpress.com,
change your currency to £GBP (top right) and head to your basket and it should show £131.24 (might vary slightly due to exchange rate.
I am aware there are other good deals on 3GB RAM octa-cores, such as the P9 Lite, but I don't want larger than 5". Therefore this was the best 3GB, 8-core, snapdragon I could find in my price range and to my spec.
TCB successfully tracked
Not from Xiaomi, just an unofficial store using their name, albeit one with ok reviews.