I asked as the airline at departure may request one if flying visa exempt.
You have that so all good.
Bit off topic but doing bit of research on AI answers (web)
Below is AI answer to question of cost. So approx 5k -6k usd.
Accurate?
"In Bangkok, Thailand, an endoscopic brow lift can cost around $3,600 USD, while an endoscopic forehead and brow lift with Endotine can cost around $5,500 USD"