I have been working all over Thailand for over 14 years and never once has any immigration officer asked me to present a TM30, I have never been late on any 90-Day reports and only had 1 day overstay because I had to wait for proper documents from my employer (they actually paid the fine for me and wrote a letter explaining why I was one day overstay), I guess I must be one very lucky person

Sorry, those values are equivalent to 30,000 baht, but you get the idea

People, it's only 900 US Dollars or 850 Euros, it's not like you have to carry a wad of cash with you

You could end up in limbo because you would have already exited the country you were in and denied entry to the country you are trying to enter. That is a possibility when make land border entry, at the airport it is different, there you are at the mercy of the immigration official

sent it to pm

Here's something I think will help Jos

just a note ... if you are over 60 your Thai employer cannot get you coverage, you will have to find insurance on your and that is quite costly