did you tell them that you can't get the one year extension without having a bank account with the required amount of funds in it two months before applying?
this is something that I haven't had to deal with as yet, so; does using "SWIFT" mean using a 'regular' financial institution such as a Bank or Credit Union and not Wise?
With your Extension of Stay refused, what now? Did the IO offer you a chance to try to get evidence of the International transfers from the banks concerned and then come back to apply for the Extension again?
you certainly would want to check that Wise Transfers are correctly coded as International. Knowing what a number of Expats have said about 'Thai logic', it's hard to imagine an IO understanding and accepting the 'paper trail', as you put it.
generally, that's good information and it's come up before that I've seen. The OP obviously was already following the procedures in that Wise article, but if Wise change their partner as mentioned without clearly notifying it's customers, then people are going to get caught out.
suggested, there is a way to overcome the issue, but it's probably best for all those Wise customers who need their transfers to be marked as International, for Visa and long term extension purposes, to check their bank account after every transfer, to make sure it's coded correctly.
based on what you said has been your time in Thailand, definitely within the rules and strange that the IO refused you an extension.
Fair enough if you don't want to get married. I certainly can personally relate to "Life was not kind to me". I'm about two years older than you are and if I told people what I've had happen in my life, it would probably cause a lot of Jaws to drop, figuratively at least. I wish you all the best for your future.