I mailed mine May 2020 and it was a $99 refund. It never said anything about even being received until a few weeks ago. Once when I checked it said my return was received May 22, 2020 and gave me a number to call with an extension. I called and after waiting only about 10 minutes I did get to talk to a person who verified my return was processed and would be coming. About 3 weeks later I got it and it included interest.
