How to fill out income from Rewards program

Hi,

 

I need help with specific instructions on how to fill out the tax form if I received a 1099-MISC and box 3 Other income says $2,200. This was earned based on referring people onto a internet provider. As a reward or a form of payment, we receive points that we can then redeem into tangible things we can order. 

 

I have trouble understanding the difference between distinguishing when something is a hobby and a Business if the numbers are around the $2,200. Please help!