Hello,

I have two passports (Australian and United Kingdom), Im currently in Thailand on visa exempt and have done a 30 day extension on my Australian passport. I'm leaving Thailand in a month to laos, Italy then Greece and wish to come back to Thailand at the end of July and until the end of the year if possible. Can I achieve this by applying for a multiple entry visa using my United Kingdom passport? Or will immigration see that I've entered before using my Australian passport and crack on.

Thanks in advance for any help :)