Problem:

I'm already the premium subscriber with a subscription. Can I stop receiving DataCamp ads on Youtube? 

Solution: 

The ads you see while watching YouTube videos are tailored to your interests and based on your Google Ad Settings, the videos you’ve viewed, and whether you're signed in or not. More information on what triggers specific ads can be found on YouTube's Help Center.

You can control the ads that are delivered to you based on your Google Account across devices in your Ad Settings. You can also view, delete, or pause your YouTube watch history. This should help eliminate unwanted ads, including DataCamp ads.