max( 0, $pkg_svc->quantity - $num_cust_svc );
$part_svc->{'Hash'}{'cust_pkg_svc'} =
$num_cust_svc ? [ $self->cust_svc($part_svc->svcpart) ] : []
max( 0, $pkg_svc->quantity - $num_cust_svc );
$part_svc->{'Hash'}{'cust_pkg_svc'} =
$num_cust_svc ? [ $self->cust_svc($part_svc->svcpart) ] : []