I was at the J lounge in Canberra last weekend and there was a lady trying to gain access with her status in one airline, but crediting her flight to another (vague recollection: status with Cathay and crediting to Qantas, or vice versa). The lounge lady stood firm that the frequent flyer on the boarding pass HAD TO match the OW status (for lounge access). A supervisor came out and explained the same to the traveller. I later saw the lady inside the lounge, so I presume she did finally agree to have the FF number changed on her boarding pass.
If status was with Cathay then this would by wrong if it happened. If the status was with Qantas it would be correct.
The Qantas Club | Lounge Locations | Australia | Canberra Domestic
Qantas do restrict their own and EK Skywards members, lets look at QFF/Skywards Gold: (Note the
^) footnote.
[TABLE="class: grid, width: 500"]
[TR]
[TH="colspan: 2"]
Eligible Qantas Members[/TH]
[/TR]
[TR]
[TD="colspan: 2"].
.
.[/TD]
[/TR]
[TR]
[TH]Gold Frequent Flyer[/TH]
[TD]Next onward flight must be on a Qantas
^, Emirates
^, Jetstar Airlines+ or oneworld marketed and operated flight.#
One guest allowed and does not need to be travelling.[/TD]
[/TR]
[TR]
[TD="colspan: 2"].
.
.[/TD]
[/TR][TR]
[TH="colspan: 2"]
Eligible Emirates Members[/TH]
[/TR][TR]
[TD="colspan: 2"].
.
.[/TD]
[/TR][TR]
[TR][TR]
[TH]Emirates Gold Skyward Members[/TH]
[TD]Next onward flight must be on a Qantas
^, Emirates
^, Jetstar Airlines+ or oneworld marketed and operated flight.#
One guest allowed and does not need to be travelling.[/TD]
[/TR]
[TR]
[TD="colspan: 2"].
.
.[/TD]
[/TR]
[TR]
[TD="colspan: 2"]
^ Lounge access eligibility is based on the class of travel, Qantas club membership or
the Frequent Flyer Membership tier for your next onward flight.[/TD]
[/TR]
[/TABLE]
But they don't (can't?) so restrict non QFF *O members (Sapphire): (Note the lack of the
^)
[TABLE="class: grid, width: 500"]
[TR]
[TH="colspan: 2"]Eligible oneworld Status[/TH]
[/TR]
[TR]
[TD="colspan: 2"].
.
.[/TD]
[/TR]
[TR="class: alt"]
[TH]Sapphire[/TH]
[TD]Next onward flight that day must be on a
oneworld operated and marketed flight.#
One guest allowed and does not need to be travelling.[/TD]
[/TR]
[/TABLE]