what country do you think he’s talking about? This is Thailand. All the bullshit you posted will never work. This is NOT the west. Yes go threaten the Thai shop. You’ll never collect a single baht.
This is what you get for going to a Thai shop for technical support. They don’t know what they’re doing. Technical support is nonexistent in a country that doesn’t learn/know logical thinking. Next time use a qualified expat that knows what they’re doing