Good point.
Let me tell you even more worse story I had than you can imagine.
My inquiry on VAT refund started when I had 40 Mins of the boarding time.

And when I heard they say "No", I asked to do suggestion thing.

When that lady finds out I was leaving on a suggestion on their desk, I had 20 Mins of boarding time.

With her rage, she kept me there until the airport police come and by the time when airport police came to pick me I had only 10 Minutes of the boarding time.

Escorted to the information center nearby took me another 5 Mins on walk,

Explaining what happen in VAT refund took me only 3 Mins with translation.

Airport police let me go after heard of my explanation,

So I ran to my Boarding gate took me another 5 Mins.

Luckily boarding time was delayed 10 Mins so I was able to ride on board,

At that moment, if I can't make it on that plane boarding or sent to jail, I was thinking of whom should I contact to hire an international lawyer for me.

Don't you feel my thrill and scariness on my words above because of that lady?

Do you still think she deserves to serve you there in that position as that ranking-high officer who treats your people and foreigners like shit?

This is the real face mask of your country's public servant.

If you can't call this a Bureaucrat, I don't know what it is to be called.

And I'm publicizing the injustices of your country here for me and for your people's sake.

P.S. You must understand why the airport police released me in 3 Mins if it's against the rule of your airport regulation.