This is just an update on the question that i posted above.

I was able to obtain an NOC from my wife's sponsor, the one who arranged her business visa. The next day, i went to the immigration in Abu habour, and presented it to the lady officer. She was accommodating and accepted the NOC letter, it was around 7am. At 1pm, when i checked in the MOI website, our application for family visit visa was approved.

Next is, stamping of the new visa on her passport.