Description
SKY TV had it's 25th birthday in 2015 and wanted to celebrate by giving back to the customers who'd been with them the longest. It was a simple concept. Each visitor received an additional entry into the draw for every year they'd been a customer. And there were 25 money-can't-buy prizes up for grabs. Like behind the scenes tours of the Game of Thrones shooting locations and studio session with John Oliver in New York. Very cool.  

I loved it because
it was simple and it worked it's socks off. We had over 300,000 entries for some of the individual prizes. Absolutely epic. 

Agencies
Us&Co

Special mentions
Sunmeet, a hell of a developer.