qsearch('cust_credit_bill', { 'invnum' => $self->invnum } );
if ( $bill_total > $cust_bill->charged ) {
$dbh->rollback if $oldAutoCommit;
qsearch('cust_credit_bill', { 'invnum' => $self->invnum } );
if ( $bill_total > $cust_bill->charged ) {
$dbh->rollback if $oldAutoCommit;