On 21/12/2015 14:13, Paul Corfield wrote:

Yes the cheaper fare will be via Overground and then changing to reach
East Croydon to catch an onward service.

DLR has always been on the same fare scale as LU. The fare will be
the more expensive one because you are being routed via Cannon Street.
Yes there is an OSI between Bank and Cannon Street. TfL now publish
an official list rather than keeping it a state secret.

http://content.tfl.gov.uk/out-of-sta...terchanges.pdf

Thanks Paul - I suspected as much (the higher fare bit, the OSI list is
gratefully received as well).