These are deviant people and believing them can take the Muslim away from the fold of Islam.
Kindly refer to the following link(s):
https://islamqa.info/en/40703
https://islamqa.info/en/7654

I hope you are fine and doing well, I am writing to you from Afghanistan, here in my local community we have Mullahs claiming that they are able to see the Jinns and also they can communicate with Jinns, Now my question is, that is possible for human-being to interact and communicate with Jinns and physically see the Jinns?

Jinn, Witchcraft, Black Magic and the Evil Eye | June 29, 2017 3:45 am
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How come so many people see ghosts that resemble the dead and are wearing the same cloths as the dead? If they possess a certain place for many years how do you get rid of them.
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I suffer a lot with either sihir or hassad, I’ve done ruqya a lot but keeps suffering, am I allowed to pray , cry and ask Allah to punish who ever is doing this to me. Because I suffer a lot and it’s a big test for me, every time I suffer I feel like I wish I know the person and go ask him or her to stop