clearly this guy doesn’t know anything. It would most likely not work. Culturally, “saving face” is important. Going up to an official and directly telling them it is their fault is asking for problems. If you are even able to get in contact with them, you need to do it in a much more humble manner. Apologize, highlight how the tech must have made an error, as the email with the invite never came through, etc.
Can you share the email you received regarding the interview? (Black out any personal details). Curious what they said, as not sure I have seen mention of a virtual interviews before
through the same embassy as your friend? When did your friend apply? Most embassies have been requiring 6+ months of training and if less giving out tourist visas.
You only report when you have been in Thailand for 90 consecutive days. If you leave before 90 days, you don’t need to report and when you come back in, the timer starts back at day 1.