After being referred from NZ call center to LH, from SEN Line to NZ and back to SEN Line I ended up with LH's RTW desk, who upgraded me into E class.
So I'm waiting for the ticketing now and try to secure an upgrade from Premium Eco on the NRT-AKL segment of my RTW.
Any experiences of someone on *A Upgrade Certs on that route? Just noted that there's only a total of 26 C seats in a 777, so assume chances are slim.
Thanks anyway for pointing me to this.
DAvid