Character Slot Question

Wasn't sure where to post this as I am not sure if its a bug or not going to be done.

In the character slot screen it shows that we should have 4 available character slots and that 8 more can be purchased/unlocked.

My question is, why where we not given the 4th slot?
Will we be able to purchase the character slot tickets and if so, what is the ETA on when we should see them?

If we aren't getting them, what is the reason behind it, and can there be a change to remove or add a message saying that feature isn't available.

I did try searching for an answer before posting and the only thing I found was someone saying it wasn't going to be added, but I wasn't sure if that was specific to the launch or the beta testing.