The UPU also sets the rules for the sake of international mail exchanges and provides recommendations that help to enhance the parcel, the volumes of financial services and enhance the quality of the service to the consumers. <ref name="link1">[http://www.upu.int/en/the-upu/the-upu.html upu.int]</ref> | The UPU also sets the rules for the sake of international mail exchanges and provides recommendations that help to enhance the parcel, the volumes of financial services and enhance the quality of the service to the consumers. <ref name="link1">[http://www.upu.int/en/the-upu/the-upu.html upu.int]</ref> |