Why does the postmaster send money to Lencho Why does he sign the letter God?

The postmaster sends money to Lencho because he is moved by Lencho's unwavering faith and the sincerity of his letter, which expresses desperation after a hailstorm destroys his crops. By signing the letter "God," the postmaster aims to honor Lencho's belief that divine intervention is responsible for the help he receives, thus reinforcing Lencho's faith and hope in a higher power. This act also reflects the postmaster's kindness and empathy towards Lencho's plight.