I have visited thailand twice this year on 30 days tourist stamp. In november I am planning to fly U.K to Australia with a stopover of 4 days in thailand and 3 weeks later back to uk with a stop over in Thailand of 30 days. Whilst in Thailand I want to visit Kuala Lumphur for 4 days and back to Thailand and then to Vietnam for a couple of days and then back to thailand.. Do you think I might have any trouble with Thai Immigration because of so many visit in such a short time. Hope this makes sence

I have visited thailand twice this year on 30 days tourist stamp. In november I am planning to fly U.K to Australia with a stopover of 4 days in thailand and 3 weeks later back to uk with a stop over in Thailand of 30 days. Whilst in Thailand I want to visit Kuala Lumphur for 4 days and back to Thailand and then to Vietnam for a couple of days and then back to thailand.. Do you think I might have any trouble with Thai Immigration because of so many visit in such a short time. Hope this makes sence

Hello

You are free do do whatever you feel like as in you may come and go as you please 'as long as you do not exceed the 90 days which doesn't seem to be tha case)

Just have your return ticket with you to eventually present it to the immigration officer.

You would be surprised how often people do what you are describing so not to worry

You are restricted to 90 days in a six month period. Also many airlines will not fly you here without visa if you do not have an onward ticket so be aware of that rule. I suspect your previous use of 30 day entry was early in the year? If July/August you might have a problem with your current November plans.