Here is the Kit Kat contest to win a Nexus 7...or a $5 Google Play credit.
https://g.kitkat.ca/en/
Here are the UPC codes:
KIT KAT 4 Finger - 05980331
KIT KAT 4 Finger King - 059800516419
KIT KAT Chunky - 059800216920
KIT KAT Chunky King - 059800204736
KIT KAT 4 Finger Dark 70% - 059800000048
KIT KAT Bites - 059800623360
4 Bar Chunky - 059800218696
4 Bar pack - 059800218627
2 Pack - 059800516419
Snack Size - 059800218894
Post back if you win anything. APparently if you win a $5 Google play credit you will not see "you won!" on the screen...you will receive an email.
Post back if you win.
I'm 0/10 (entering me and my wife...and just started today).