In this instance surely the club can't Be at fault?!
They are a customer of the stadium owners. The caterers are employed by the stadium owners. The caterers have pulled the catering (couldn't make it up. 'You had one job' comes to mind!).
Where in this have the club done wrong?
Yes we are their customers (whether we like being referred to as that is a different matter), but unless they personally have the contract, I'm not sure how they can be blamed.
Would have been a better story had the club arranged alternative food arrangements, but I'm guessing wasps wouldn't allow that (still, if I was the club I'd be looking at alternatives; i mean how many do we get in corporate anyway? Surely some local chippy would gladly take an order for pie and chips? Bit of free publicity? Then again, if the club did that, would it get any publicity at all for the CET and the like?)
And speaking of that, what's the betting the CET get hold of this and make a negative article up against the club?