OSSE or an LEA shall dispute an invoice for services, or the adequacy of the information provided, by transmitting a dispute notification electronically, by facsimile, by hand delivery or by mail, not later than the 5th or 15th day of the month after the corresponding invoice processing date as defined in § 2999.
For example and as noted above, if an invoice is received on March 3, it will be processed as if received on March 5, and the undisputed amount must be paid in full by April 5; if OSSE or the LEA disputes all or a portion of that invoice the dispute notice must be filed by April 5. If an invoice is received on March 6, it will be processed as if received on March 15. The undisputed amount of the invoice shall be paid in full by April 15. If OSSE or the LEA dispute all or a portion of that invoice, the dispute notification to the provider is due by April 15. Finally, an invoice received on March 16 shall be processed as if received on April 5, and the undisputed amount of that invoice is due to be paid to the provider by May 5.
Receipt of a dispute notification is deemed to be effective the date the notification is delivered to the provider or three (3) days after the postmark in the event a dispute notification is mailed. The dispute notification constitutes the final dispute decision by OSSE or the LEA.
The dispute notification shall include the following information:
The parties may seek to resolve disputes informally at any time.
D.C. Mun. Regs. tit. 5, r. 5-A2904