Fiverr has specific criteria and guidelines for approving seller accounts, and they assess applications carefully. Several reasons might lead to a seller account not being approved, such as incomplete or inaccurate information, a lack of relevant skills and experience, or not meeting their quality and professionalism standards.
To increase your chances of approval, make sure your profile is complete, highlighting your skills and experience, and follow Fiverr's terms and conditions closely. It's also essential to showcase your expertise, maintain professionalism, and, if needed, consider enhancing your profile before reapplying to meet Fiverr's requirements.