Upon purchase, you'll receive TWITCH account.
Link it to your game account to claim the following items: 

1. Random Decoration (QTCC) x2
2. x12 decorations (see screenshot in the link above)

NOTE: 
!!! Claim items promptly post-purchase; they may expire.
!!! Unlink the Twitch account once all items are collected.
!!! Items hidden after 6 months are still claimable.

YOU CAN LINK TWITCH ACCOUNT NOT OFTEN THAN ONCE EVERY 7 DAYS, DONT BUY MORE THAN 1 ACCOUNT PER WEEK! If you have previously received these items, you will be able to get them again along with the purchase of this product in unlimited quantities.