Product Reviewer - What do I count as income and deductions

I started a side gig (hobby) where I get products from a review website. I buy the product on Amazon and the review website then provides a refund (exactly how much I paid for the product on Amazon) to my PayPal Account. Do I need to claim these payment exchanges on taxes - they equal $0 at the end. I get refunded exactly what I paid for the product. How do I deal with these for tax purposes?

 

Additionally, I get a small fee for each product I get. Usually around $2-3. I've made around $1000 for the entire tax year of 2019. How do I handle this extra income on taxes? Do I classify this as income from another source?

 

Thanks!