If the old man is paralyzed and loses his passbook in a rural credit cooperative outside the province, he must reissue it in the original rural credit cooperative, but he needs the proof and authorization of the old man. Although the old man is paralyzed, his other physical functions are still there. Now, communication is developed. After communicating with the original rural credit cooperatives, the rural credit cooperatives will use the communication function of mobile phones (or computers) to convey the vitality and willingness of the elderly through videos and materials, and explain the solutions to you.