For many who call, including working families, new parents and pensioners, it's their first time claiming benefits, with many surprised to learn they qualify for financial help.
I lawer sy'n defnyddio'r gwasanaeth, hwn yw'r tro cyntaf iddynt geisio hawlio budd-daliadau, yn deuluoedd sy'n gweithio, rhieni newydd a phensiynwyr.