Mandi applied two nights in a row, because the VIP's were there two nights in a row. Video of all that was deleted.
Mandi used her father's real name and phone number as an emergency contact, and her real name, birthdate, and work history at the same place Mulrenin worked, both nights.
So you can see, Mandi just came to work, and got drugged and a dick in her mouth. GQ Jim gave Mandi weed and secretly cut 5mg codeine into her coke, but did not take either himself.
All he did was put his DNA in her mouth.