They'll have been making a margin on that 3% , likely only being charged about half that. They never add on anything when paying by card for servicing or repairs.
This action has done more damage to the reputation of the airline then any post made by the passenger. That sounds?? Another shot in the own foot of the Thai company...
Pathetically unoriginal regurgitated ”throw away the keys" trope.
" Better to say nothing and be thought a fool than to speak and remove all doubt”
There's a better cliche for you...
I just stand there looking regal holding my BRITISH passport in an ostentatious way while cultivating a sneering, condescending look down my nose. I'm ALWAYS ushered to the front of the queue with copious tugging of the forelock. Rule Britannia!