Well, I had to call support and if I understood correctly, they changed my account from amazon.ca to amazon.com. After that, I logged off/on and I got a lot more things on my settings, like Your Voice and Household Profile. These were not there before.
Note: Before I called support I did re-install the app, reset the phone, logged off/in... no dice. It only appeared there after they made some changes on their side.
Thanks a lot for the replies! I hope this helps someone else too.