Conjuration is a satanic practice which involves using Jinn (creatures created from fire) in a way that contradicts Tawhid (belief in the Oneness of Allah). This is because conjuration is only done through acts of Shirk (associating others with Allah in His Divinity or worship). Beings who report such information as what is mentioned in the question are not souls. Rather, they are devils who declare this information to deceive people. No one can call souls except Allah (Glorified and Exalted be He). Accordingly, it is Wajib (obligatory) to believe that conjuration is falsehood that must be rejected, not attended, and not accepted as truth.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.