The term Rep is a shortened version of the word "Representative". The Chambers Twentieth Century Dictionary describes a representative thus: One who represents another or others as a deputy, delegate, etc.
If you dont like what is going on by YOUR REPRESENTATIVES either directly (Negotiations) or indirectly (Working Together) DO SOMETHING ABOUT IT.
Challenge your reps/union officials, Agitate, Attend the monthly BECs, Submit motions to Conference, Submit motions of no confidence if necessary, etc, etc.
Hopefully we have not reached the nadir of New Liarbour/Tories where the MPs after election toe the party line to advance their careers and feather their own financial nests and renounce their duty to the citizens who voted for them OR HAVE WE????