Never overstay !!!

@Steve ******

the OP wants advise on being denied .

It's a common myth that immigration Denys entry .

It's not immigration .

It happens at boarding on instruction from immigration .

Your splitting hairs will not give them the correct answer .

@Jo *********

yes it is .

The problem is a lot of ticket agents don't know the difference .

It's worth the extra 100 euros to me

@Goel *******

you never really know .

It's always ,in every country ,up to the individual immigration officer ...contact you nearest Thai embassy by email and ask for correct info .

That way you have it in writing

@Steve ******

it's not immigration ,it's an airline at boarding

It is the law that you have a onward ticket within the period of your first visa ..I have seen people denied .

I have friends that have had to scramble to buy a ticket before they would allow boarding .

I always do it because ...I want on that plane badly and it's worth the extra fee dollars to me .

The fake ones are fraud and I would never break a Thai law !

Consequences can be brutal

Correct way ,so many try to beat the system

No

You should never have less than that .

Hurricanes ,political coups ,tsunami ,ATMs out of money ,military uprising ,bank strike ,all have happened to me .

Far better to lose it ,than not go have it when you really need it .

It's not that much money

It's not the fine .

It's immigration prison if you are stopped and checked (I have seen that happen ,)

Two day red stamp.,a red flag to every immigration officer in any country that looks at your passport .

It's a really bad idea