I pay for a service but the agent forgets an important item included and paid for. Immediate response is, you didn't pay for that and I'm shown at a distance some sort of receipt that I can't read. I check on my phone and sure enough, there's the payment in full I made.
Then of course I get the Thai tortoise syndrome. The whole office withdraws into an invisible shell. Looks in my direction like it's all my fault, why am I making trouble etc etc. We're not wrong. Not possible. You stupid foreigner etc etc. Eventually I figure out doing it myself is a far safer bet, so to my and their relief, I get the money back for the item they forgot and I, believe it or not, end up apologising for the trouble I've caused.
Odd, isn't it? How I feel guilty for spotting their mistake, or attempted scam, maybe. And hours later I'm still feeling bad about it. No apology from them. Just denial and blame shifting. The Thai way or the highway. Always was and always will be I guess.