Thanks, Lee .... I note that compaints entered on that site ARE forwarded to the relevant train companies.

In terms of letting people know when you feel something's gone wrong, we have ...

* Groups such as ours, Railvoice and others who can pass things on
* Customer services at the individual train companies
* Directors and managers directly at the train companies
* Directors of the train operating company's parent organsation
* Department for Transport (I feel a who's who coming up!)
* Office of the Rail Regulator
* Passenger Focus
* The railway, local and natonal press
* Your MP^▸ (Member of Parliament, or Mile Post - a method of measuring the railway in miles and chains from a starting point - usually London, depending on context).

Each tends to have its own specifics in terms of what effect it can have, whether you're looking to sort out an individual case, how much clout  you have. 

It's probably a very good thing that there's no single place for these inputs, but - my goodness - which to use in which case?