For those that may not have understood what I meant, this occurred following the clampdown of Aug 2014. People should remember things can always go back to the way they were.
Previously, visitors from countries which are exempt from obtaining a tourist visa when entering Thailand, including Australia, France, Germany, Hong Kong, Japan, Singapore, United Kingdom, and United States of America, could stay in Thailand for a period not exceeding 30 days per visit. Now, the new regulations permit visitors from these countries, as well as those entering Thailand with tourist visas, to apply once for an additional 30 day extension of stay without having to leave the country. It should be noted, however, that the period of extension in total cannot exceed 30 days from the expiration date and is subject to the discretion of the authorities.
https://www.bakermckenzie.com/-/media/files/insight/publications/2014/09/thailand-introduces-new-visa-extension-regulations/files/read-publication/fileattachment/al_thailand_visaextensionregulations_sep14.pdf