body: I have a complaint about the way I've been treated by a charitable body. In the fallout from some problems, they have chosen to respond to the financial concerns of a majority customer group, while ignoring a smaller group with the same concerns. 
  
  
  Essentially the situation is this: they were selling tickets for a two-day event, which they have had to change significantly. Those who have one-day tickets are being offered refunds or the option of a free upgrade to a two-day ticket. Those who bought two-day tickets are being ignored.
  
  
  In terms of contract law, they are watertight: they did not need to respond to any of these concerns. Instead, they've chosen only to look after those in a particular situation. A cynic might conclude this is a purposeful attempt at damage limitation to save money. It is also manifestly unfair - the sums involved run to the hundreds of pounds.
  
  
  Either way, splitting their customer base like that is manifestly unfair. I am curious to know if there are any further legal principles I could use to take a complaint forward?
  
  
  
title: Are there any generalised concenpts of "fair treatment" in UK law?