Many articles say that you can promote Clickbank products using Adwords PPC campaigns but I am not able to get my ads approved in Adwords and I have tried everything like
  1. Using Domain masking to have my own domain showing Clickbank Product
  2. Redirect from my own site with display url as my site as well as vendors site
  3. Directly Clickbank hop link

Can anyone let me know how they are promoting Clickbank products in Google Adwords?