this also happened to me, went into the mists, took the portal to lions arch, went into overflow and talked to tixx which followed with him saying i recieved the present, i then clicked on him again, saying that line one per person and to check the chest. the chest is open and i checked pvp tixx to and the same thing happened. it apears that using the pvp map mist to get to lions arch seems to bug some accounts resulting in no one recieving the bag. hopefully there will be a fix or we can recieve the bag :/