Bungie Team, Disregard all the problems we all have had with Xür, this last one was the worst! I bought the Titan Chest of Alpha Lupi last Friday then I saw that he has selling to the upgrade for this Chest!! I rushed all day long, got more 9 Strange Coins and 7500 glimmers and the results??? Nothing!!! Or worst, I still lost all the upgrades I have done up that moment in this chest!! It's really incredible how it could be available for new Chests if it just make sense for older ones!! And there is no much info about that at all !  The opposite, in a lot of places we can read that the "real potential of a Exotic Armor is just unlocked after upgrades"! We all get upset when Xür doesn't sell what we expect, or changes inventory, or for encrypted engrams that unlock different Class Armor or even faking as showing as possible to buy some stuffs after buying the Dark Below Expansion but when we buy it we can't finish the purchase cause more Coins is necessary... But make us spend for nothing 9 strange coins for something completely useless is unacceptable !! Please, give me back at least my 9 strange coins! Best regards TAGMAR_MOA