@CN ***
Sorry, that's a detail I forgot to mention. I used the 800K banked option. Today's bank excursion was to get a one-page statement with the current balance since no seasoning is required for the initial Non-O. I also didn't see anything about the funds needing to be shown to come from overseas, though mine were transferred that way. I guess when I apply for the one-year extension I will need a more detailed statement from the bank showing at least 2 months of seasoning and I think that might not be possible the same day but I need to research that more. I have read the same as you about the US not providing certification letters and I don't think they have done so for many years now.