Once you have gone through Thai Immigration walk across to the building on the right in the photo above.
Go to the first window and ask for a Visa form. Fill it in and hand it back with 1 passport photo and 1500 baht. Wait a few minutes until they issue you with a visa and then move along to the next window to get your arrival stamp. The Immigration Officer will ask you if you are staying or going straight back to Thailand . Tell them you are going straight back and you will be told there is a 300 baht charge. ( so have the right money ready ) Once you are stamped in go across to the Building on the left of the photo and get an Exit stamp.
Then head back to the Thai Immigration Office on the left ( as you head back ) ,fill in your arrivals card and hand it in with you passport at the booth .As I've said before check the date stamp before leaving as they sometimes get it wrong .
You should be able to do this in 15-20 minutes...good luck![]()