The "norm" for a Thai is to pay an agent to do it?
If a Thai wants an agent to do the transfer I'd be suggesting that the Thai purchaser pays for that service himself. But that's just me.
"Are you a real Scouser?"
What's that got to do with you and what's the relevance to the OP? Did I say that I was a "scouser", real or otherwise?
What your mates check in is irrelevant also, who cares? The OP said that he wanted to bring a TV to Bangkok through the airport.
Why are so many posters quoting a fare of around B1500 (to where?) when no destination has been specified? It's, obviously, nowhere near B1500 for a metered airport taxi (or Grab, Bolt) into Bangkok, for instance.
No, I'll comment based on what I read that you posted!
"you haven't got a clue have you ?"
Give the whole story before you try to reprimand other posters for not being mind readers or being clueless!
You cancelled the purchase just because an app (that you can install in two minutes) that isn't normally installed at the factory, wasn't on the phone? Geez. Why would anyone expect Line to be factory-installed?
"It’s not just Thailand I’m afraid……"
Huh? The OP is complaining about his country, you seem to be congratulating yours for sorting out a fraud problem in a few minutes on the phone.
Edit: Oops, missed the actual length of the connection!
Well I happen to be Thai. Does this give me less rights to "complain"?
No, but it doesn't give you the right to Thai-bash, either, when nothing you whinged about is particularly idiosyncratic of Thailand.