my @billar = @{$_[0]}; #DATA from sendbill (just host/values)
my $month = $_[1];
$month = '0'.$month if $month < 10;
+ $month = '12' if $month == 0;
my $year = $_[2];
my $mwst = $_[3];
my @address_cust= @{$_[4]}; #Array which contains customer and hoster adresses and some additional info from billgroup