Well, someone did hear my prayers. The London Assembly has finally eaten humble pie and admitted it needs help. They also followed some of my advice and went to the Managing Director of Madrid Metro. Just the man. Read about it here.
The problem is the Jubilee line closures which have been plaguing weekend services for months. Need new glasses - go to Specsavers; chipped windscreen - ask Autoglass Subway not working - ask a Spaniard. They really do know.