Just a tip. The form asked me for the address of the Airbnb I'm at including the city (Bangkok), district (Bang Na) and sub-district (I had no clue so put Bang Na again and it worked). Sub-district is a required field but repeating the district worked, at least in my case. The form processed immediately. I had forgotten to do it at home so completed it between flights at the Hong Kong airport.
So if I continue to get my pensions in my Canadian bank account and transfer 65,000 bhat each month, that will meet the requirement? I somehow had the idea that the deposit had to come from the source of my pensions.