I've always go that route without any problems, but today all the sudden they no longer have access to that information and want you to call tech support, which they even said they won't give it out. Might be a hit and miss now with some reps, some might not have read the memo yet? But who knows....
Only if they activation goes right. Last three times (two Nexus phones and a G4) they wanted me to open chat, so no way of getting it.