After you file

I was told not to file a Tennessee state return,  the live agent guided me to try to fix a REVIEW popup, it was nothing, so she assured me I could file and It is showing state return filed, so I'm lost? $315 no I did everything,  now look also was charged for MAX  , I said no as well agent did ,idk what MAX is  but its charged as well as a tennessee state return filing fee,?? clicked continue not agreement of any sort. So please  Idk what to do, federal is accepted. What do I need to do to amend? Also I need to file my 2018 taxes, anyone help me understand what to do, TY