Yes—potential hidden costs include revision fees, rush fees, product shipping, rights for content reuse, or extra influencer requests. Some agencies may charge extra for campaign tracking tools, analytics reports, or performance bonuses. Without transparency, these fees can appear after the contract is signed. Always request a full cost estimation that includes all possible extras. https://bizistech.com/transparent-amazon-agency-pricing-from-a-leading-influencer-marketing-agency/