Your mother should repent to Allah from feeding this sorcerer who is not a man of Allah as he is writing things that are not permissible in Islam and would be considered as Shirk. Giving this woman money as well is not permissible.

There was a person who came to my house who said I felled sick because I burnt Quranic ayahs and he wrote a series of taweezs for me to put in water and drink. My mother would prepare lunch for him. Then mymother got another lady who does ruqyah as she claims it’s correct & my mother when she gets money spends on her. What must I do in such a situation?