Can I upgrade to Business on Emirates flight booked via Qantas Sale Fare?

I have purchased a Qantas sales fare to Europe, flying Emirates. I am wanting to upgrade but I don’t think my sale fare will allow me. Is there any way around this? Would I contact Qantas or Emirates? I have gone on line but it will not allow me. Do I have to just suck it up and fly Economy?

You miss out on two counts. Can’t upgrade sale fares and can’t upgrade flights on Emirates aircraft.