I received Form 6513 in via USPS mail today. It states my Form 7004 Extension Request was Denied because the Application was filed after the deadline. Form 7004 was returned and had "Envelope Post Mark March 22, 2022" & "Received March 28, 2022" stamped on it. However, I know I mailed it March 14, 2022, as I kept a copy of the certified mail receipt and the USPS receipt both dated March 14, 2022.
This happened to me once before and the letter I received told me how to dispute the decision. This Form 6513 has nothing on it about disputing the decision. I've written a letter and made copies of my receipts. Can someone please tell me how I dispute this decision given there is no guidance on the Form?
