I accepted FEMA'a offer of NFIP insurance for three years with the stipulation that I am required to maintain flood insurance on my own dime for subsequent years. They sent me an acknowledgement form to sign and a glossy brochure with generic information about flood insurance. However, they never sent me a policy, declaration page, or policy number. I have no way to know if I am covered. It has been four months since I was "informed" that I have NFIP insurance. What is the best action to take at this point?