Tial Not Working Properly

As I mention already and Still hope someone can help.I followed all steps and put all possible combination and als deleted old demo files vb net and re-downloaded and recheck, and I STILL HAVE 12day Trial what DOESN'T EXIST in my admin panel anymore.Expect some reasonable help and not sending me on YouTube looking for tutorial, I will contact the owner this is not help here but frustrating new customers with less knowledge!

When you use a trial extension that extends the trial. You can't then un-extend the trial.