I don't know if there's anyone with the same problem, but 1000 Cash Shop Credits i had yesterday are all gone now ... and i have in my inventory some rare items now :s!!! I don't want the rare items ... I was reserving my credits for something else! If it's something from the site, i need to know what it is.
You're positive you didn't spend them? If you're sure, file a ticket.
Go ahead and file a ticket, then. Staff is pretty good about clearing those things up.