DenialWiz is designed to operate without protected health information. Text you submit to the appeal-letter generator is processed transiently via first-party AI providers under zero-data-retention terms — never stored on our servers, never used for training. Inputs containing obvious identifiers (SSN, DOB patterns) are rejected. We collect: the email you provide to unlock the generator, and standard server logs. We are not a HIPAA covered entity or business associate; do not submit PHI. Contact: support@denialwiz.com. Operated by RENDUN LIMITED.