Help please: new Australian passport received from Embassy in BKK. Old passport clipped, with a stamp stating that all Visas in the old are valid for the new. Have to leave by 17 December, which I am. I have been informed that I just need to have both passports at the immigration counter when I leave. I have now been (I think, mis)informed by Koh Tao's leading travel shop that I have to go to immigration on Samui and have the Visa and stamp transferred into the new passport. Please tell me which is correct here? Thank you in advance.