(Fatwa: 931/918=L/1429)
It is the effect of Ism-e-Azam that Allah Ta’ala grants every dua made with it. Hadhrat Thanwi wrote in Aamal-e-Qurani that the below three verses contain Ism-e-Azam:
الم، اللہ لا الہ الا ھو الحی القیوم
لا الہ الا انت سبحانک انی کنت من الظالمین
ھو اللہ الذی لا الہ الا ھو عالم الغیب والشھادۃ ھو الرحمن الرحیم
To subordinate jinn and get his services forcefully without his consent is unlawful. (Ashraful Amaliyat: 177,178)
The other questions are not related to Darul Ifta.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband