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Rule 4:

A. Each bill must prominently display a toll-free number for service or billing inquiries, along with an address where the customer may write to the carrier.

B. In case of a billing dispute between a customer and the carrier, the carrier will comply with any customer request for the carrier to undertake an investigation and review of the disputed amount.

C. If a customer fails to pay the undisputed portion of the bill by the Due By Date (no sooner than fifteen days of the date of presentation) shown on the bill, the carrier may notify the customer in writing of such delinquency and indicate that service may be terminated

D. A carrier may not disconnect service to a customer who has submitted a claim to CSD for investigation and decision, has either paid the disputed amount or has deposited the amount in dispute with the Commission within seven calendar days after the date the carrier notifies the customer that the carrier's investigation and review are completed. However, in no event shall the carrier disconnect service prior to the Due By Date shown on the bill. .

E. In no event shall a carrier disconnect service to a customer who has deposited the full amount in dispute with the Commission so long as the undisputed amount is paid.

Rule 5: Carriers are restricted from releasing nonpublic customer information in accordance with PU Code §§ 2891, 2891.1, and 2893, and any other applicable state or federal statutes or regulations, as they may be amended from time to time, that pertain to customer privacy. Carriers shall also comply, so long as those rules remain generally applicable to other carriers, with the Commission's rules set forth in Appendix B of Decision Nos. 92860 and 93361, as modified, which generally prohibit, with certain exceptions, the release of calling records and credit information of all subscribers -both residential and business -absent the receipt of a search

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warrant under federal or state or in response to a subpoena or subpoena duces tecum authorized by a federal or state judge.

Rule 6: Consistent with our authority over all other carriers, IECs offering detariffed service are directed to cooperate fully by responding in a timely fashion to any request by the Commission or its staff for documents including but not limited to the customer-carrier contract, billing records, customer calling records, solicitations and correspondence from the carrier to the customer, applicable third party verifications, and any other information or documentation regarding a customer complaint. The carrier shall fully comply with a request for such documents or information by the Commission or its staff no later than ten business days from the date of request. Failure by an IEC to comply with this rule may result in penalties as set forth in PU Code §§ 2107, 2110, and 2111. 7.

Any limitation of liability provision contained in a contract for detariffed services shall in no way limit the ability of a complainant to recover reparations before the Commission.