@Whatwouldscullydo - You have never had to deal with the WAG, confusion at every turn! 
They truly are a mess, just look at the state of the NHS in Wales since deveolution. Not wanting to derail the OP point.
The WAG sent a list of items that THEY deemed to be non essential to the super markets, the super markets then proceeded to block off access to these items, through fear of significant fines.
Of these non essential items, many people would class them as essential (baby clothes, duvets, baby bottle sterlising machines, cards, books etc
When a government, can dictate what people can and cannot buy, I think it should be challenged at the highest level. Sadly, Borris sat back and watched it unfold, smugly smiling.