I'm happy to report I worked with Ken from paywithmoon to get my coins returned without doxxing myself. Turns out the problem was just old-fashioned buggy chainalysis, big surprise. I verified the source of my funds without KYC and that did the trick. I might give their service another try in the future, but when I do i'll make sure I deposit only with Lightning where chainalysis flagging me is less of a concern.