Do I need to bring a house contract to extend my stay for 30 days in Phuket immigration?

To extend your stay for an additional 30 days at Phuket immigration, you will require your house contract if you have not registered your address. Additionally, your landlord needs to be present to provide copies of their ID and blue housebook. If they cannot accompany you, a signed power of attorney along with 10 THB tax stamps will be necessary.