Last month I went to cambodia and back to receive a 30 days stamp in my passport. I dont have a paper visa. (So yes, I am doing the type of back to back visa that was just banned hehe) In bangkok I've always extended my visa by 7 days or 14 days for B1,900.

This time I went to the chonburi immigration office and they offered to extend my visa by 30 days for B6,500. Furthermore, a filipina lady at the copy center next door to the immigration office said I could extend by 90 days for B15,000. The lady also said i could keep paying B15,000 and getting another 90 days indefinitely. I left the shop when she tried to intimidate me that I probably will get denied a multi entry TR visa when I applied in cambodia. She was really pushing hard for me to pay B15,000 haha.

Are these normal tourist extensions? I'm just curious why bangkok never offered them to me and in usual discussions I come across on the internet, people only mention 7 day, 14 day extensions. Or 30 day extension for paper visas.

One other thing the filipina at the copy shop said, was that if I extend for 7 days I couldn't extend again. But if I extended for 30 or 90 days, I could keep extending over and over.