Tax refund

My return was denied when I e-filed. My husband died in 2021 so I was instructed to mail my return. I did that on March 28, 2022. I have not received my refund and can not get an answer at the IRS. Is ID-Me a form of the IRS. That popped up when I went to Where's MY Refund. They only ask for email and phone number but I am hesitate to answer the phone if they call. How can I get an answer on my refund