All my local supermarkets have been out of flours - all types and icing sugar for weeks now.
Just ordered from thefoodboxuk.co.uk and got a £20 box. You can choose what ones you want and I chose 2 x icing sugar, 2x plain flour, 2 x SR flour, 1 x dark brown sugar, 1x large caster sugar and they popped in a cocoa powder also.
Ordered earlier in the week and it came today.
Promise I’m not affiliated with them in any way but just so happy to find some in stock somewhere! Just need to find bread flour now!