The OP has an update to this Post...
"Just a follow up to my visa renewal/marriage conversion. Posting here as original post has been closed.
Appointment stamped in passport directed me to appear in person on the 9th. Wife and I arrived at Immigration 10:00. Place was less busy than previously, about
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full and all officers were occupied. We went directly to the unmanned information desk and waited for the clerk.
After about 3 minutes one of the older male officers came round and began speaking to my wife. (I had asked her to direct all conversations to me as things had gotten so confused last time) but officer seemed upset and would not even look at me.
He took my passport and directed us to sit in the waiting area. He then went to a credenza behind his desk, found a folder sitting ready on top, attached my passport, looked me dead in the eye and slammed it down on his desk.
We went to the waiting area, but I have no idea what I might have done as I barely spoke a word and always make a conscious effort smile and be agreeable with public officials.
Wife said he was upset as he stated we were to have called ahead of our arrival. 🤷♂️
Information Clerk showed up after 10 minutes. Must have been on break.
20 minutes later he came out and waived for me. I asked Wife to stay seated and went to him. He kept glancing between me and my Wife, eventually handing my passport to me. Then without saying a word, pointed to the new stamp, and flipped to the 90 Day Extention stapled in the back. Turned and walked away. I thanked the back of his head.
Overall, from beginning to end, the process is doable yourself. Use patience. I believe different officers use different strategies to try to trip you up. Smile and don’t argue.
One point that I was not aware:
The one year renewal is from date of arrival, not one year from the previous visa expiration after extensions. So, even though I was stamped on Mar 9, my new visa expires Dec 4."