I have tried this a few times, and I've never gotten anything more than the general "culture" or "we went with other great candidates" response. It is incredibly frustrating and unhelpful to ask for any feedback only to be met with "Unfortunately we’re not able to provide specific feedback." How can I improve or refine my skills without any information? I keep things cordial and professional but often the conversation will just end, full stop.

Thanks for the reply and well wishes, though. Trying to keep fighting.