well I went and got my 30 day extension at Sakon Nakhon and it was great...went in filled out form, had copy of main passport page but forgot copy of visa stamp..so they copied it for me free of charge. also forgot my departure card, but he got one for me. he had to change the bar code number ? . (thank God he was a patient man) but apart from that in and out in 20 min thats including 10min wait when first got there.. ๐..