Recently booked a FlyDubai return ticket MLE-DXB. Circumstances changed and I no longer need the flight. FlyDubai only offers vouchers as refunds. I need to fly to Indonesia soon. Would I be able to use my FlyDubai voucher to book a MLE-DXB-CGK flight on Emirates?

The FlyDubai site doesn't show Emirates codeshare options when trying to book online. Although Jakarta is listed by Emirates as being one of their codeshare destinations for FlyDubai.

Any advice greatly appreciated so that I haven't just thrown $1700 down the drain!