Today Bahria Town published an ad in different newspaper where they paying special thanks to the registered members who own registration certificate for Bahria Town Karachi project. They also mentioned that, a special Task Help Center designated for 24/7 who will help the registered members for booking and other information.
Help Center Toll Free Number: 080000100
So after this we can assume that registration form has still value and Bahria is trying to help their registered members so they can take out something from this investment.
Bahria Town also apologize for the convenience which caused during booking form distribution.
Here is further detail.