I just called and it was applied and I could see it on cruise planner while I was on phone. I had been told before that if you don't call it will show up when you board, but I agree with Bosjoe that calling will make sure it works, before you find out that it didn't get applied to your account. Plus if you apply it immediately then you can use it for excursions, spa appts etc that you want to purchase before you board.
Now I'm waiting to see how and when my shareholder obc shows up. I filled all that stuff out over the weekend.