I have option to receive $350 or 10000 Qmiles What's better ? I have no idea
Unless you already have a large number of Qmiles (and it appears from your question that's not likely), it'll be almost impossible for you to get more than 3.5c/point of value - so take the cash
Unless you already have a large number of Qmiles (and it appears from your question that's not likely), it'll be almost impossible for you to get more than 3.5c/point of value - so take the cash