Date and Time : 13/6/2016 (13:33 GMT+1)
Where it happened (which map, which quest, which npc, etc) : On login screen
Bug Description : Items handed out during last maintenance (4x 1 hour experience book) disappeared from mail, are no longer retrievable, are gone, no mail remains about it)
Long story short, you handed out 4 books i was going to redeem on my alt. They were redeemable until the 16th. Today is the 13th. 3 days left yet books have disappeared.