Originally Posted by
Metanoia
If you can verify through another means (dummy booking, or ExpertFlyer) that the aircraft slated is a 3-class 77W then I'd go ahead and book it. However, there is always the chance of equipment change so there still exists a risk you'll be refunded the 10k miles and strand them in your EK account.
It's a 77W all week now (I wish it wasn't as the J on this a/c sucks with 2-3-2).
I'm more concerned about this option being in fact a regular feature that EK offers to just pay the difference later or if for some reason the system thinks it's a revenue booking and in the last step would error out. It also shows Chauffeur Drive despite this route not being eligible for that (and awards tickets especially not).