@Cindy *****************
then you can get a 30 day extension of stay at your local Thai Immigration office for 1900 Thai baht.
IF you are in Bangkok,
You do not ๐ซ go to the IT Laksi Square Thai Immigration office...
You go to the Main Thai Immigration office in Bangkok.. the CW Chaengewattana Immigration Office to apply for the 30 days extension of your stay. It's ADDED to your current STAMPED ending date.