After you file

They say it’s being handled by a debt company and to call them. When I did they couldn’t give me any info. But the automatic system from doe says last payment was March 11 2020.  But I did get the email saying I was due a refund. But still no check. I’m getting scared I won’t get a check.  I’ll call back and see if I can get anymore info after the part they tell me to call the debt company handling my account. Thanks for the info.