I just bought XCOM 2 on Steam sale, but after reviewing the bundles that contain it, I'd much rather have the whole XCOM 2 Collection and save money on the game and the DLCs. I can't buy the bundle now because the offer is only applicable when one doesn't already have an item from the bundle.
So I requested a refund on the purchase. Will it be possible to buy the bundle after refund? And in general, is is possible to buy a game a second time after getting a refund?