Do I need a TM30 form from my landlord to extend my tourist visa in Thailand?

@Peter *****

When I stayed at a hotel near Blupoint Shopping Centre Hua Hin recently and applied for my 30-day extension, my hotel provided me with a letter on their letterhead stating that I was currently residing at their hotel, the hotel receptionist said she does that many times each day. I took this letter and filled out a form at Immigration I believe was a TM30. I waited about 20 mins and was asked to come forward and have an interview with an Immigration Police Officer. I had already submitted my form, my letter from my hotel, and my passport. At the interview, the immigration policeman confirmed who I was as he photocopied my passport. The immigration policeman accepted my Bt1900 payment and gave me a receipt. I returned to my seat the same way the other 20 or so people waiting did and then a young Thai lady came out and handed me my passport with an extended visa stamp included in that passport...All done and finished she wished me well. End of story. Total time required just a few mins short of 1 hour. I did attend the Immigration office a few days before to get the full information from a young lady at the door to Immigration advising people how to go about it. I did a dry run before I submitted my visa extension application 2 days before.