Denver

I filed for a routime renewal of my EAD with AOS pending at the NSC, the case was transfered to Denver district office. AFter 3.5 months I went to get an interim EAD which was not granted because their records supposedly showed that the EAD was approved. Waited few more weeks went back again, same story. Bottomline is nether an interim EAD nor did theactual EAD ever show as approved online or ever got to me.
I dont know what to do next.