If brands aren’t accepting your proposals for sponsored social media posts, it could be because your account doesn’t demonstrate enough engagement or alignment with their brand. Companies look for influencers who can authentically promote their products to a relevant audience, so if your follower base or content doesn’t match, they may pass on the opportunity. Make sure your content is consistent and speaks directly to the niche you’re trying to attract. Also, focus on increasing engagement metrics like comments, shares, and likes rather than just follower count. Reach out to brands with detailed proposals showing how their product fits into your content.