Am I right in thinking there is a typo in the fourth sentence, it should read "If you can't get this agreement.....". I was much confused by this. Or do you mean we must run the draws anyway?
I am also confused by your use of the word "club". Maybe it's a generic term, but I used the word "club" to refer to the 200 club. So are you saying that if we get agreement from 200-club members the monies can be used benefit of the organisation in general, not just 200 club? It is a fact that the 50% not paid out in prizes went to the organisation in general.
And just to clarify, are you saying that we only need to take reasonable steps to identify the members, i.e. we don't have to start advertising in the London Gazette, if it still exists. Would just writing to them at their last known address be sufficient?