Air New Zealand Air Points - Refitted a/c - confusion reigns, so have I gotten lucky?

Cousins & I are heading to LA in a couple of weeks, NZ6 out NZ5 home. The itn.net seat maps show the refitted config on both aircraft, but the call centre rep assured me this was not the case and the (very dedicated! thank you for getting a difficult booking right!) rep at the Travelcentre where I paid wasn't sure.

Anyhoo, I was assigned row 20 on the upper deck, this from NZ's own systems, not itn.net or any other vague Internet source. The old config has no row 20, much less upstairs. So surely I'm in luck. Or am I?

justakiwi