There's a "glitch " in BB system where if you preordered Destiny 2 you wont get the $10 (500 points ) bonus rewards unless you ask..
Here is what you should do
"Hey Everyone –
I just wanted to hop in quick and provide some clarification for you all. If you've checked your points history on BestBuy.com and are still not seeing your 500 bonus points for Destiny 2 please send a private message to the GamersClub-BBY Inbox at http://forums.bestbuy.com/
with your full name, My Best Buy Member ID, and Order Number of Customer Service Pin (from your in-store receipt). Given this extra busy time of year we are running a few days behind on responding to posts and private messages, so we ask for your patience while we work to assist everyone in turn.
Got my points in 2 hours after I msged GamersClub-BBY