What is the process for providing evidence of monthly income for visa extension in Thailand?

I want to update on recent process of providing evidence of monthly income into Kasikhornbank in support of my visa extension based on retirement here.

My bank statement showing regular and sufficient deposits of more than 65k baht per month but was not accepted by Immigration as I learned it only shows deposit and not international deposit. I was asked for a seperate statement from Kasikhorn. I was charged 1500 baht (almost as much as Oz embassy previously charged for stat dec and a result of a recent fee rise) for a bundle of receipts (redacted copy provided). These were accepted by Immigration.

I asked them if I could get this receipt with each transaction and was sent a form (which is too large to upload) to request free email notification after each transfer. Returned it to the bank and await notification after next transfer.

I hope this assists people