What are the requirements for obtaining a Non-O visa based on retirement at Petchabun Immigration?

UPDATE. Petchabun Immigration. Non O visa (over 50) application yesterday. Irish passport. With my Thai partner.

First we had to update my TM 30 in person as I have just got back here. Entered on visa exempt and got 60 days.

Then we were told to go to the bank and get a letter and statements showing 800000 for the last 2 months. Luckily I have a bank acc and had put the money in the account before my arrival here. The IO wrote down what we needed in Thai to help us before we went to the bank.

Back to the IO and they did all the paperwork. Pages and pages of my bank book transactions and all kinds of other stuff. I just had to sign my name about 50 times on both sets. 2 recent photos. My partner had to hand draw a map of where the house is as they said they would come and visit in the next 2 weeks and provide all kinds of docs about herself.

Now it is 'under consideration' for 3 weeks and we have to go back on 28th to get the Visa confirmed and stamped in my passport.

2 points to note:

First that I needed the money in my bank 2 months before I even applied for the Visa, not the extension.

Second that they will come and visit for a retirement Visa not a marriage visa.

Not many people use Petchabun IO but thought the update might help some of you.