Originally Posted by eternaltransit

Are you adding in the DXB sectors as a multi-sector booking? EK prices on an Origin-Destination basis even for awards, not on a per sector basis, so just put in CDG to MLE in the flight search: I just found a Y ticket for 65k miles and an extortionate 321.15 EUR in fees, viz. 797 EUR for a cash fare.

Incidentally, apparently you can upgrade an award booking, according to EKs booking engine (of course for much more than booking the higher class award straight out).