is it possible to trade binaries on a live prize account
I'm not sure but I guess it could be possible. It would be interesting to know what turnover requirement would be in this case.
Try to ask around a bit and if you don't get your answer then just contact your account manager or contest@dukasopy.com.
We have only one bonus option for Binaries - Binary Anniversary Bonus. This option can not be used on prize accounts.
https://www.dukascopy.com/swiss/english/binary-options/anniversary-bonus/
пока нельзя спрашивал у тех поддержки конкурсов говорят что в будущем сделают такую возможность