Don't worry, I have the same problem as you. I am sure my area got Unifi already (I called their number), but when I tried to apply online (to qualify for the 1 month subscription free), they say that my area is not covered!

So what I did today is to call their number up (1800-88-1222, wait 10 minutes for their operators to be free), and mention that you are trying to apply online. They transfered me to their technical team I think, they helped me to apply, and I still get the 1 month subscription free, as if I apply online! 

I hope they will keep their word, in my first bill should deduct off my first month bill...