A more thorough explanation:

Definition: A remittee is a person or organization who receives payment.

Example 1: John is the remittee for the rent payment. The landlord sends the rent payment to John.

Example 2: The charity organization is the remittee for the donations. People send their donations to the charity organization.

The examples illustrate that a remittee is the recipient of a payment. In example 1, John is the person who receives the rent payment from the landlord. In example 2, the charity organization is the entity that receives the donations from people.