Yes sure you can ask as many,
well, they have a objection that since rukhsati is such a important ritual why did you not perform it?and when you plan to do it.
and see they know that after rukhsati the bride moves to husbands home and i am sure you must have your family back in pakistan and your wife can complete her graduation from your home (in laws) too, so i prefer either show them the nikkah event as complete rukhsati or if you dont want that then its normal to recieve an objection and you can reply that we plan rukhsati at xyz date n submit hall booking reciept n rukhsati wedding card as a proof as we did in our case. because you will have to reply to the objection with in 30 days. and the reason that you didnot perform rukhsati should be a solid one.
the pictures are send in a word file, you can paste them in a word file n they ask you to label the people from left to right and the place n date n event in photo. i prefer u take casual photos with family n everyone so they seem more natural.
if you know someone in nadra they will get certificate issued in a week, give some chaye kharchi to them. and by the way the marriage certificate is issued by union council where the nikkah took place.
the name change is not necessary as they dont object to that and i got my urgent nic in a week n urgent passport also in a week n in parallet the nadra marriage certificate so if u gear up u can get all done in 2 weeks.