Yep. From immigration. Everything is "Visa Extension" but I guess the Paddy knows better than Thai Immigration? Excuse me whilst I ROFL! šššš
Over 15 years here, but I can see from your name you're of Irish heritage which explains a lot. It's a visa extension no matter how you try to bs your way out of it. You have a visa and when it expires you EXTEND it. Pretty simple huh? ššš