The operator of their lounges can. Many countries have restrictions on the number of patrons for safety reasons, alcohol licensing requirements, fire safety etc. An example recently which you would be familiar was during Covid when maximum capacities were severely restricted or lounges closed due to potential health risks.
It is complimentary as it is offered as part of the class of ticket purchased. As a result, the airlines can state conditions associated with the offer. As indicated above in the Qantas example, this can include when and where lounges are availableâŠand subject to availability.
Many businesses offer complimentary services or products as part of a purchase. These are subject to conditions and most also have conditions associated with availability. An example being promotions run by supermarkets which offer things that can be collected. These are complimentary and in addition to the purchase. The supermarkets make it clear in their promotions that the offer is âsubject to availability and/or when the items run outâ. One canât ask the supermarket for compensation because it happens to run out of the complimentary offering or they arenât available in a particular store/time.
No, this is what you have paid for. If you think that say for a similar priced ticket that food on Singapore Airlines is better than Air FranceâŠalong with the seats being betterâŠwhen you fly with Air France you canât ask for compensation because their airline seats/food isnât as good as Singapore Airlines. Likewise with business class and economy. If you think that there was no difference between economy and business class, then one has the right to lodge a complaint with the airline. One doesnât have a right to ask for compensation under the Australian Consumer Law.
If you paid for business class and they downgraded you to economy, then this is a different proposition and can be subject to a compensation claim under the Australian Consumer Law. The claim being that purchased services were not supplied.
Some airlines also offer other complimentary services for business class ticket holders, such as chauffeured pick-up and drop off, seats that turn into beds rather than reline, fast track security, priority boarding, priority immigration and the list goes on. All of these are complimentary and subject to availability. Not being able to use them for some reason, doesnât mean that one can ask for compensation because one didnât.
In relation to the situation at hand, one has the ability to lodge a letter of complaint with Lufthansa that business class lounge was unavailable at the time of travel through Munich. An airline might be interested in particularly where their lounges are contracted out. A letter of complaint is different to a letter of demand/claim under the Australian Consumer Law for compensation and possibly the avenue to take if the friend feels the need to let Lufthansa know. This can be done online here:
https://www.lufthansa.com/et/en/feedback-past-flight