I need to advertise a website to sell products related to Saint Seiya, so I decided to begin with Facebook (as Google Adwords seems to be a bit too advanced for me at the moment), and I started creating my ad.

I created a campaign for clicks on website, as my products are on an external website which I don't manage, so I can't install a facebook pixel to track conversions.

I chose my Audience with these criteria:

• People aged 18-35
• American people (I selected North, Center and South America)
• Buyers (Under Behaviors -> Purchase habits) AND
  • Interested in -> Saint Seiya

This resulted in an audience of about 800k people.

Now, I set the campaign to last 5 days with a 100$ budget (20$/day), it's on since a couple days, I spent nearly 40$ but I had exactly 0 sales.

I'm pretty sure the products are ok, they have been bought before and customers were happy.

Am I missing something? Shouldn't the "buyers" filter help me reach those who are likely to buy something instead of just watching the ad? Is there anything wrong with how I chose my target audience? If so, how could I improve it?