According to RVK she never approaches a brand, they always approach her and she's 'not a member of any of these influencer apps that connect you with brands to constantly earn money'.
I HIGHLY doubt that judging by how obvious her begging is and constant brand tagging which she literally admitted was to get the brands attention.
This part of her post also got me;
'The most common way that brands get in touch and want to partner is not by offering payment, but instead by offering a product to review and feature. Cue comments like 'you get everything for free'. Which it might seem like to some, but this is a huge part of this industry. It's not technically a free product if you're expected to produce some content in exchange for it and share this/promote it on your instagram or blog. The brand is in essence paying for your time in creating that content and your voice in promoting their product'
... she's justifying receiving free stuff because they make her work to create content for it. So she does fully understand that it's payment for the ad... she just doesn't want to declare it.