For what it's worth, I applied for PR early 2017, using the visa/HR lady at my work. She gathered all related documents from work and told me what I had to do (including photos outside my house, outside my village, inside all rooms in my house, outside my place of work, inside my pace of work). We submitted all the paperwork, and each subsequent time we went back they asked for something else. Each visit the immigration officers at CW tried to sell us things like a Thai course (wife informed them I didn't need it as I spoke Thai well enough), a fast track (no thanks, we can wait) etc. until we were called in to an unofficial interview where they asked about savings, assets etc. I'm not stupid, so I said we had none. They explained I would not pass unless we made a contribution (not their policy, but their superiors we were told). It wasn't a great amount, and we were cornered, so we paid. After that it was plain sailing. Short, easy interview. The visit from local immigration beforehand was tension filled as the main guy was not happy about having to perform this task, and didn't hide it.
The whole process was about a year.
As an aside, the visa lady from work tried to trick me out of 100K as a payment to immigration officials, which we refused to pay (immigration asked for a lot less than that).
I will add that having PR is nice, however I have since bought a couple of condos, and both land and house offices refused to accept I now have the right to buy a condo without sending money from overseas, even when I showed them the official rules and regs regarding foreigners purchasing property).
Lastly, I am about to get my PR renewed for the first time - does anyone know what documents I have to produce for this?
Thanks in advance