...
use DBI;

unlink 'file_01.csv';
unlink 'file_02.csv';
unlink 'new.csv';
open my $oFile, '>', 'file_01.csv';
print $oFile "Prefix,NumberRange,ChargeBand\n";
close $oFile;
open $oFile, '>', 'file_02.csv';
print $oFile "Termination,Service,ChargeBand\n";
close $oFile;

my $dir = '.';
...
    ) or die "Cannot connect: " . $DBI::errstr;

print "DBI            version: $DBI::VERSION\n";
print "DBD::CSV       version: $DBD::CSV::VERSION\n";
print "SQL::Statement version: $SQL::Statement::VERSION\n";

my $sth_match = $dbh_match->prepare(
...

##</code><code>##

DBI            version: 1.607
DBD::CSV       version: 0.22
SQL::Statement version: 1.15
Use of uninitialized value in substitution iterator at C:/Perl/lib/SQL/Parser.pm line 1596.
    DBI 1.607-ithread default trace level set to 0x0/1 (pid 4280) at noname1.pl line 48
    <- disconnect= 1 at noname1.pl line 50
    <- DESTROY(DBI::st=HASH(3c13f34))= ''
    <- DESTROY(DBI::db=HASH(3c12a54))= ''
    <- disconnect_all= undef at DBI.pm line 717
!   <- DESTROY(DBI::dr=HASH(3c124c4))= undef during global destruction

##</code><code>##

DBI            version: 1.616
DBD::CSV       version: 0.31
SQL::Statement version: 1.33
DBD::CSV::st execute failed: You passed 0 parameters where 1 required [for Statement "
        CREATE TABLE new AS SELECT file_01.Prefix, file_01.NumberRange, 
                file_02.Termination, file_02.Service, file_02.ChargeBand
        FROM file_01 INNER JOIN file_02
        ON file_01.Chargeband = file_02.ChargeBand
        WHERE file_02.Termination LIKE '%something%'
      "] at C:\Users\Peter\Delme~~\PerlScratch\noname1.pl line 46.
DBD::CSV::st execute failed: You passed 0 parameters where 1 required [for Statement "
        CREATE TABLE new AS SELECT file_01.Prefix, file_01.NumberRange, 
                file_02.Termination, file_02.Service, file_02.ChargeBand
        FROM file_01 INNER JOIN file_02
        ON file_01.Chargeband = file_02.ChargeBand
        WHERE file_02.Termination LIKE '%something%'
      "] at C:\Users\Peter\Delme~~\PerlScratch\noname1.pl line 46.

##</code><code>##

...
        WHERE file_02.Termination LIKE ?
      |
    );
$sth_match->execute('%something%')
    or die "Cannot execute: " . $sth_match->errstr();

DBI->trace(1);
...