Someone in one of the Skype chats I’m in had 500 Robux disappear from his account. He couldn’t find it in his transaction history at first, but upon further inspection he found it – he couldn’t find it initially because it wasn’t sorted properly:
If you notice down at the bottom there’s a transaction on 9/13 for a VIP server for Apocalypse Rising. If you look below that, the renewal on 10/13 is there. The 10/13 renewal should be up with the purchases of Sabine’s Helmet and Darth Vader Mask – not down with last month’s transactions.