The Coop supermarket chain has won the wooden spoon of being voted the worst  offender for piped music. Although the chain is not everyone’s choice of shop, it is often the only place that the most vulnerable in society – those who cannot drive for whatever reason, for example – find they have to do their shopping. It is also a chain that loudly proclaims its ethical ideals.               So whether or not you shop there regularly, write in protest to its CEO Steve Murrells steve.murrells@co-operative.coop

(NB: Not every branch of the Co-op is controlled by the London HQ. The East Anglia and Midlands branches have some autonomy, so it is wise to check the status of a branch before making a protest.)

The Nationwide Building Society, which until recently prided itself on not  having piped music, is now introducing it, doubtless misled by the mendacious propaganda of the piped music industry. Email  www.nationwide.co.uk/support/contact-us/make-a-complaint or  by post to The Complaints Team, Nationwide Building Society  NW 2020, Swindon SN38 1NW    As the Nationwide is still  converting once pleasant branches to muzac-filled places of torment, it is well worth writing NOW.