Satan is a theistic being because he is an object of worship for his followers and they have rituals in order to do so.<quoted text>
Here you say that Satan is theistic being.
You also said that the Church of Satan do not recognise a theistic being.
In other words, you appear to be saying that Satan is not a theistic being.
These people are theistic satanists.
The church of satan was established by anton lavey, he was an atheist as are the adherants of the church.
They use the name to describe their subconscious feelings of hedonism, greed, etc and justify their action for doing acts to achieve these ends.
These people while describing themselves as satanists are actually atheists for they do not believe in either God or satan as animated beings.