Qatar Petroleum two day visit

Hi Everyone.
I initial had a telephone interview and offered a package which I have accepted. I have to attend a two day visit. I'm aware that I have to do a technical and personal interview, I am worried that if they are not happy i would be offered the position. What other thing do i need to be aware of. It is also clear the role is no longer being advertised on the websites
If they are not happy, you won't be offered, so do your best to pass all the interviews. Simple as that!