Google Adwords / Affiliate Link

How come when I try to use Adwords for an affiliate I-phone site it immediately goes under review? I am a novice, but I am using my affiliate link from Plimus and using it as the Destination url. I am using the actual link of the site as the displaying url. Don't want to get my adwords account blown up so I immediately paused then deleted it. Am I missing something here?? Help and advice is appreciated WordPress ...