wrote ...
I would like to complain about:
(a) The unavailability of a Super Off Peak fare on a journey Fleet-
Clapham Jn-Shepherds Bush
(b) The inability to buy a ticket with Network Card discount from a LU
ticket office. This was a real pain on Monday on my way back from
Brussels. If they can sell tickets with NR components, why can't they
apply NR discounts?
Anyway: whom do I complain to?

(a) The local TOC for the station you bought the ticket
(b) TfL

(a) + (b) Your Member of Parliament

On all three counts, I suspect you will be wasting your time.
--

Andrew