my $start_date = $params{past_dates} ? undef : $self->get_previous_billed_period_start_date;
$start_date = $start_date ? $start_date->add(days => 1) : $cur_date->clone;
my $start_date = $params{past_dates} ? undef : $self->get_previous_billed_period_start_date;
$start_date = $start_date ? $start_date->add(days => 1) : $cur_date->clone;