if cardtype($payinfo) eq "Unknown";
if ( defined $cust_main->dbdef_table->column('paycvv') ) {
if ( length($cgi->param('paycvv') ) ) {
if ( cardtype($payinfo) eq 'American Express card' ) {
$cgi->param('paycvv') =~ /^(\d{4})$/
if cardtype($payinfo) eq "Unknown";
if ( defined $cust_main->dbdef_table->column('paycvv') ) {
if ( length($cgi->param('paycvv') ) ) {
if ( cardtype($payinfo) eq 'American Express card' ) {
$cgi->param('paycvv') =~ /^(\d{4})$/