It is an auto generated e mail, not a snarky response. The passport number was wrong and application rejected before anything else was even considered. Move on, resubmit and make the 80 page resume useful.
Good for you. Hope you realised the gain so you can show it as instant accessible cash to the embassy. Seasoned for 3 months, some require 6. You need much less that your amazing earnings.
Why would you pay with QR Thai code if you can pay with the card which is purchase fee free (wise, monzo etc…). Converting foreign currency is expensive (whether cash exchange or wise transfer onto a thai account) … keep it for where they do not take foreign cards or charge extra for using them.