Immigration Buriram told today, that you can do the extension of 30 days of the 30days visa excemption online, just with the barcode from the arrival/departure card.
Anyone heard of that and got a link that website ?
TLDR : Answer Summary
A user inquired about the possibility of extending a 30-day visa exemption online using a barcode from the arrival card, as mentioned by Buriram immigration. However, commenters expressed skepticism, noting that as of the date of the inquiry, there was no online extension process available and questioned the clarity of the information provided. Additional queries about the requirements for such an extension, including payment methods, were raised.