I am puzzled about why Lewisham has lower recycling than other boroughs - "the lowest in the country" - and what the reason is for this

The London Borough of Lewisham has a recycling rate of
17% and is home to 122,000 households, with numbers
rising exponentially. Just under 40,000 residences are
made up of large estate properties and tower blocks, with
communal recycling bins located externally, and often
incorporating a chute system for disposal of residual waste.
As a result, low participation and contamination of bins have
proved problematic for recycling services.