To be safe I would ask the immigration office that you are using exactly what they require rather than shoving a copy of the attached document in the junior officers face that has been instructed by her/his superior that it's 30 days!

^^^

That's a great site for continually upgraded visa extensions etc.

Although, each Immi centre can still vary their own requirements.

That was a file not a website.

The file contains the order directing all immigration offices to allow 6 month old income letters. There already has been a case where a member showed a print out of the order to an immigration officer that said it had to be within 30 days and the officer agreed to the 6 months.

A file from the Pattaya City Expats Club website ...

You wrote site.

Did you open the file to notice that if contains the immigration order in Thai.

Yes - I accessed it from the PCEC site last year and copied it, including the Thai Police Order - I didn't have to use it