Is the $100 T-mobile reward a scam?

Unfortunately I clicked the link which is what led me to this forum. I watched something about a program called Pegasis and some of the most dangerous malware comes as single click scams like this one where it runs something malicious upon you clicking the link. So far my phone seems fine but I'm sure it would run in the background had anything installed. Hopefully someone finds out exactly what clicking it does soon, I'm worried I'm currently at risk.