Along with various other products, flour has been in short supply. If you're an habitual baker, it's easy to work yourself up into thinking that people are hoarding the stuff and will probably not use it. But is that the case? Undoubtedly, demand has increased and flour millers have increased their production.
So what's the problem? One answer seems to be that of the 50 or so main UK millers, only 12 are able to pack for retail, therefore packaging is probably the limiting problem not just the flour supply.
Here's an interesting article from the British Baker magazine, give the link a click here and all will be revealed.
And if you have any flour then please use it or donate to someone who will!