You have to wait until 20-Apr-2017 (i think) for the actual reply via email on being selected or not.
This is stated on the Form, for to register interest.
Just make sure to check you email (as stated in the Form) every now & then.
Do read the link on this matter: >> 8 Thins to Know to Book a Phone
There is an appointment period, allocated time frame, for you to go and queue for this matter.
It do not mean that you will be able to get it.
As in the past, many unable to get it as the stock is limited, as first-come-first-get in the queue.
That is to say, it is similar to "Overbooking" by Airlines on seats.