I would like to let you know that payment for 3 invoice on Dec' 21-22 (2 Inv.) and Dec' 23-24 , 2014 total amount THB 9,400.- but I had duplicate payment amount THB 1700.- on Dec'19 , 2014 . Please open attached file and forwarding to your accounting department for tax invoice. I would be grateful if you will let me know as soon as possible.