So l am arriving in Thailand 6 Jan on a 60 day TR Visa 15 days before expiry l will get a NON O Base on marrige and then the extension. My question is do l loose the 15 days or keep it . l only need to know because l have to return to Australia for my daughters marrige if l regain the 15 days easy for me if l don't it's tight for getting the extension that's why l am asking so early need to plan . Cheers