What should I do, given that I have become a member of a closed pornographic forum by the telecommunications company?

The questioner must repent to Allah Almighty for registering in the aforementioned forum to download songs and movies, as this is one of the reprehensible acts that necessitates repentance. The fact that the forum worsened does not mean it was initially permissible according to Sharia. Previous fatwas have clarified the prohibition of singing, music, and watching movies. The telecommunications company's closure of the forum and the questioner's effort to cancel his membership are commendable actions, and the validity of his repentance does not depend on canceling the membership as long as it is unfeasible.