I’m picking up a new passport in Bangkok - my current UK one is damaged. I’m here on 30 days visa exemption and have extended 30 days. I’m flying out from Bangkok a few days after I pick the passport up because the 60 days ends. I’m wondering if I need to go to immigration to have my entry and extension stamps added to the new passport or whether it will be ok to just show both passports when I’m leaving? Thanks.