After you file

That happened to me too I called twice early in the morning like you did then I finally called back around 8 something and you have to tell them that is over 21 days and you haven't received a refund and they should be able to tell you what's going on with your refund they play dumb keep trying and then if there was nothing send out maybe you won't get a letter but like I said I called 2 times earlier and they didn't tell me what I needed to know I had to call back again