All of that is just probably xian propaganda and these people lied and were never Satanists in the first place,. I know it seems weird, but if you research more on xians, they lie all the time and get exposed. They could also be mentally ill, delusional people with heavy ties to xianity who had several delusions regarding the xian version of Satan and/or contacted enemy beings.
Santeria and Voodoo, as it's been said, have to do with worshiping xian saints, using psalms in magick and many other xianized practices. They have really nothing to do with Satanism. If you really claim to contact Satan in a religion influenced by xianity, then it's probably your own xian delusions and you will attract enemy angels and other beings behind xianity, sometimes even pretending to be Satan.
As it has been explained on JoS, to grow and advance in Spiritual Satanism and experience Satan, you need to cut all ties to enemy religions. Enemy ties can create heavy delusions and attract enemy beings.