Upon requesting a hearing after a dispute denial, what is the communication method to the Commissioner?

The correct choice is based on the formal nature of communication required when a licensee or applicant requests a hearing after a dispute denial. This process necessitates providing a clear and documented request to the Commissioner, which aligns with regulatory practices emphasizing written forms of communication for accountability and record-keeping.

Written notification ensures that there is a formal and traceable record of the request, which is crucial in legal and regulatory matters. It also helps in establishing the date of the request and the specifics of the dispute, which are necessary for proceeding with a hearing. The other methods such as email, fax, or in-person communication, while they may be effective in certain situations, do not provide the same level of formality and documentation that written notification offers in the context of regulatory hearings.