I too called the same dealership yesterday, booked mine at Honda Point as well. Specially asked him if i should give them another Pay Order and when exactly to make remaining payment, and he said: Sir aik hi daffa launch par dain pay order 22nd k baad.
The other source who told me date is from the factory. To be honest, I'd be happy if my info is wrong and it's 11th instead considering they are giving wrong dates to give a surprise. Though a petty surprise of 11 days, I wish they better give a bigger surprise of graphic meter and reduced price instead.