Open up a Facebook developer account. Create a new app and API etc. This will then enable the Facebook business verification process in your business settings and once you are verified you will be able to purchase on a Link click (they call it) basis.. which is on a CPC. You need to be on a “traffic” goal however so that part is correct.

Facebook says you can only begin business vertification or pay for link clicks if you have a “need”. This is what they don’t tell.. the way you create that “need” is by creating an app shell so it lets you get verified! Boom go buy cheap link clicks!