What is the proper procedure for reporting a change of address to Phuket Immigration?

Was in Myanmar for one day and just went to Phuket Imm to report my return. I tried the drive thru but she said I needed to go inside. Inside the Farang volunteer (older gentleman with round rimmed glasses) pulled out two forms 1. The Notification of Residence and 2. A Power of Attorney. He then said "I'm going to make it easy for you" then gave me a slip of paper and highlighted Items 4 and 5 (See Photo). I said "Ok, but last time I did this, there was no paperwork, they just asked if it was the same address and reissued the address notification slip". His was obviously put off by this and his reply with a very wide sarcastic grin and tone was, "Well, now since you are questioning me I will make it even "easier" for you". Then he highlighted items 1, 2 and 3 also for me to complete. I asked if this was some kind of joke and was he seriously punishing me for simply asking a question since the procedure had apparently changed since my last notification in October. He took my passport, looked at the notification and said "Well, you were lucky." Then he made some other sarcastic remarks while circling in pen items 4 and 5 indicating that he had now lifted his punishment. As I was obviously dealing with someone who was unstable I walked back to the drive up window as I am still unsure what is required of me next time. I re-explained my situation and this time an I/O (she is a Captain actually) got involved, confirmed all I wanted was an update to my address notification. She took my passport, made a handwritten update and gave it back, done. (No fee this time either). I thanked her and asked why the volunteer was sending me to meet my landlord etc etc etc. Her reply simply was "I'm a Captain" indicating anything the volunteer said was overruled. I was fine with that, thanked her again and left but for next time....I still don't know what the proper procedure is. Does anyone here know?