Mehr Ali, go ahead and write an email to all those on your list plus few NTS officials if you can find. Do highlight them that NTS routine procedure include printing out admit cards if not delivered on time and checking website on a routine base for results as instructed by them (even highlighted on admit cards).

Also mention that after all that, if NTS is going to give them another chance then it is totally unfair to us whether the test on 12 August is same as or different from the one on 4th August. This will hurt the image of NTS the most as they have managed an image of a transparent body after years of hard work serving meritorious candidates.