All insurers shall enter into a reinsurance agreement with the Fund. The reinsurance agreement shall be filed with and approved by the Director. The agreement shall provide that each insurer shall cede 100% of any subsidence insurance written up to the limits contained in Section 805.1(c) to the Fund and, in consideration of the ceding commission retained by the insurer, agrees to distribute informational publications provided by the Fund on a schedule set by the Fund, undertake adjustment of losses, payment of taxes, and all other expenses of the insurer necessary for sale of policies and administration of the mine subsidence insurance coverage. The Fund shall agree to reimburse the insurer for all amounts reasonably and properly paid policyholders from claims resulting from mine subsidence and for expenses specified in the reinsurance agreement. In addition, the reinsurance agreement may contain, and may authorize the Fund to establish and promulgate deductibles. The reinsurance agreement may also contain reasonable rules and procedures covering insurer documentation of losses; insurer reporting of claims, reports of litigation, premiums and loss payments; loss payment review by the Fund; remitting of premiums to the Fund; underwriting; and cause and origin investigations; and procedures for resolving disputes between the insurers and the Fund.