And you will need a document from the educcation department in the province that you teach. Don't be surprised if they request suddenly something new to add, this happened a month ago with me and I have been on a previous non B with the exact same dox. I will never use Penang immigration again to many bad stories and my own bad experience.
Yes you can come to Samui, I went there today for an extension and it is an absolute breeze. They lock the doors just before 12 and open again at 2pm so come early.
Yep but I am sure it will be fine there is no visa that allows you to stay for 19 days any way..And the 1 is there just over the other letters.. But thank you all for the info.