Idézet: Dancer - 2012.09.17. 20:48:30 If I win a silver reward, but already have silver, does it upgrade to gold?
No. You get the reward what you won, regardless of what did you have before. The only exception is if you have a gold, AND win a gold. In that case you will receive a platinum. Please also note that if you have platinum and win gold, your platinum will NOT upgrade to mithril. In that case, you win nothing.
If you think you will get only an inferior reward, you can tick in the "I ask a medal of Doom instead".