I just read on the Thai immigration website that you cannot get a 30 day extension on a 60 day visa exemption stamp, it cannot exceed 30 days is this correct?
Criteria for Consideration
1. The alien must have been granted a Tourist Visa or visa exemption for not exceeding 30 days on tourism purpose according to the Notification of the Ministry of Interior or visa exemption for ordinary passports for not exceeding 30 days in accordance with international agreements, clause no.13 (1) of the Ministerial Regulations prescribing the Criteria, Procedures and Conditions for Inspection, Visa Exemption and Changing the Type of Visa B.E.2545