I'll omit the byplay between dfcatch and opusman - of which I have zero interest in contributing...
RichardMel - you missed a major point.
The T&Cs clearly allow the Lounge Manager to deny entry for many, many reasons. Including for example - guest allowances being subject to lounge loading.
So, while you state that WP access to an F lounge (for example) is black and white and not open to interpretation - it's NOT actually as black and white as you explain.
This is, to me, splitting hairs into minute detail to support an argument. The core comment I made (to me anyway) still applies.
In the case of lounge access as a defined benefit (which was the crux of the core question above) it absolutely is. Indeed, no mention was originally made of guests r attire or any other particular reason one could get banished from a lounge despite status providing that befit.. and even if I did try and take 10 people into the F lounge and they said no, I doubt they would refuse ME and 1 guest (or whatever the exact
published benefit is - i think it's 1) from entry - the others would just have to go use the Tiger lounge.
I still feel my argument is still valid. In the case of being refused entry due to guests, or attire or whatever, that is not the airline NOT honouring one's entitlement under the published status benefit but, potentially, an individual case issue. For example if I go to the BNE J lounge in thongs and a ripped singlet and am denied entry, it's not because my status doesn't allow me in, so it's hardly a case of me not being given the benefits of that status.. in fact it would be a case of me ignoring(or forgetting) the published policy of the lounge. Totally different - same with trying to take in too many guests. If I'm entitled to 1 and I try and take in 2, and if the lounge is overflowing and they say sorry but you can only bring 1 in because it's full.. they are still providing the defined benefit. If I choose to go elsewhere because I can't get both my guests in, that's my call.
If a lounge manager, again for example, declares I'm too drunk or rude or whatever to be allowed into the lounge - that's well a judgement call and another issue, but again wouldn't be related to my FF status - which is what you're trying to argue.
Now IF I rocked up to the SYD F lounge with my 1 guest and was turned away and told it was because I was not permitted to with my status specifically, then yes, that would be a denial of published benefit - and I would be pissed off!!!!
Again - there are clearly definied, published benefits at each status level - things like lounge access rights (yes, subject to T&C), priority check-in, boarding, bonus points - so on and so forth - that are clearly stated and clear to verify per published policy. The wording of what the P1 SST offers in terms of special services, is clearly (as this thread shows) open to interpretation (eg: what exactly constitutes a "flight change") - for better or worse it's a grey area - and until QF can provide a written policy one way or the other that definies specific criteria for such things it will forever remain one (and this ignores the whole issue of internal communication within QF and responsibility, and authority of the SST to act, as outlined elsewhere - all of which are very legitimate issues to my way of thinking)
My 3 cents (sorry I know I do ramble on)