#3 - Aug. 31, 2018, 7:24 a.m.
Hey Rakasha,
indeed as Pinkys mentioned, if the upgrade was done very recently, and you did this over our website then the whole process may take up to maximum 72 hours. This includes features such as the character boos properly manifesting on your account.
Please try to be patience on this and every now-and-then do a full relog of the game and the Battle.net Launcher to allow the system to sync-up with the changes of your upgrade.
Thanks in advance!