Some months ago, when Lewisham decided to take only plastic bottles, a lady representing the council knocked at our door with a leaflet & sticker outlining the new guidelines.

I asked her why we could no longer recycle yogurt pots, etc, and her reply was, as IWereAbsolutelyFuming suspects, that people were having trouble understanding the guidance. She may have been misinformed, but it was the answer I got.