Got a denial letter? Don't panic. You have 60 days to file an appeal. Use form...
https://mill-wiki.win/index.php/How_Do_I_Find_the_Phoenix_SSA_Hearing_Office%3F_A_Guide_to_Your_Appeal
Got a denial letter? Don't panic. You have 60 days to file an appeal. Use form SSA-561 for your reconsideration request