Prima facie assessment for complaints: Board may seek records, form view and initiate investigation or show cause proceedings. The regulation empowers the Board to request additional records from complainants and service providers and requires submission within seven days (with a possible short extension); the Board must form an opinion on the existence of a prima facie case within thirty days, close complaints lacking a prima facie basis, provide a thirty day review mechanism for dissatisfied complainants with a thirty day disposal period, and, if a prima facie case exists, proceed by issuing a show cause notice or ordering an investigation; non frivolous complaints trigger a refund of the complaint fee.