Finishes next sunday 29th Jan.

Obviously have to go to the immigration office friday 27th as sunday it will be closed.

I require a 7 day extension.

My question is this, will the 7 days be stamped from the 29th when it runs out or from the 27th when i go to immigration?

I have to book a flight out so it would be helpful to know what day i will be leaving!

Cheers in advance.

As this is not an official extension it should be stamped 7 days from date of application.

You are aware a quick border crossing for 15 days would be about the same cost from most locations in Thailand if that would allow you more time for flight planning.