Flower knows

You can try signing up for their affiliate program and earning commission or emailing them. Often flowerknows reach out to those who they believe advertise their products well

One of my friend buyed products using her own money and posted unboxing video , brand then reached out to her

Based on my knowledge, you might have to apply for their affiliate program or just directly email them.

I saw someone get their PR without promoting/being an affiliate

Even i am wondering