Same thing happened to me. I definitely accumulated interest with Cornerstone in 2020 (before the interest freeze), but didn't collect any interest with FedLoan (my loan was transferred in Dec 2020) so the statement I'm able to download from FedLoan says $0.00. Cornerstone's website seems to no longer exist (it redirects to FedLoan now), so I can't access my statements or anything, as they were all within Cornerstone's portal. I tried to email Cornerstone's customer service email address and it bounced. No idea what to do from here!
