"The information you provided was not able to be confirmed or validated. This could be due to faulty or incomplete information. We apologize, but we will be unable to help you further at this time based upon the information you provided."

Who can assist me further?

You can keep submitting and providing/trying to provide more or as much information as possible.

As for assisting you further that is all up to what you can provide while trying to attempt an Email Recovery.

It's pretty ironic that I gave the exact city where I created this account, plus the last three cities I've lived in (all of which should be tied to my activity), and that still wasn't enough. If no one is able to help in a more direct, human way, then putting in any more effort just feels pointless.

They may not retain logs long enough to confirm all your prior cities

Same thing happened to me. Tried to recover 20k fg 4 times no luck all robots automatic rejection

If only there were a staff member who could actually perform a Q&A...