There are only 2 ways of finding this out definitively:
1) find a lucky penny & go to creepy corner shop guy and buy a bar of chocolate. Open it. If you see a Golden Ticket - hey presto!
2) empty a box of Corn Flakes. See if a packet is at the bottom. Open it. If it's a 6 piece lego train set and not a CPP invitation then you have truly been successful.
Lastly, I would avoid their web site and any formal communication with the CX recruitment department to gain any information. Of course, disregard other information on this forum that you seek an answer from as well. Best to just rely on your "passion" a la "Use the Force".