So I got the e-mail confirming my acceptation into the beta yesterday.
The e-mail states that the game should be in my library in the Uplay PC client but its not there.
100% logged into the same account that I used to sign up for the beta.
a lot of people seem to be getting this and i doubt anything but a fix by ubisoft will help so i just wouldnt worry, file a ticket, go to bed, try not to be too anxious because then you will have nightmares
EDIT: it appeared in my library literally this second, account.ubisoft.com stuff fixed too, no reply to support thread or email