You need to get this matter straightened out so the congregation can be cleaned."
OMG I don't think I will laugh as much for the rest of the day. I apologise to you CAA
So signing that piece of paper will somehow "clean the congregation" Dang elders don't ever actually want to clean anything do they?
Of course they are looking out for their own skin (surprise!!) as if they make an announcement that you are no longer a JW without your signature, then you could come back on them stating that you did not write that letter. With a signature it is sealed water tight for them.
NJY