I managed to get a little yellow highlighter on the biodata page of my passport, which rubbed off from airline staff highlighting my boarding gate number on the boarding pass. I assume i'll have to go down to the Aus embassy to apply for a new one, as I might have some trouble down the line due to the damage. Once I receive my new passport, do I need to go to immigration to transfer my visa (tourist visa), or do i just show both passports when flying out?
I'm also flying to Chiang Mai next week, i'm assuming there wouldn't be any issues with using my other passport (British) to travel since I won't have my Aus one? Similarly, anyone have experience on the processing times, it says 15 working days, and I fly out in 18 working days, so not sure if that is cutting it fine in case it sometimes takes longer.
TLDR : Answer Summary
The individual is concerned about a little yellow highlighter mark on the biodata page of their Australian passport, which may cause future issues when traveling. They asked if they need to go to immigration to transfer their tourist visa after getting a new passport or if showing both passports would be sufficient. Comments from the community suggest that minor damages like a highlighter mark usually do not prevent entry or exit, and that both passports can be used for travel in Thailand. One user advised they were able to renew their passport without causing issues, while others shared experiences of using damaged passports without major problems.