my $response = $soap->call( ... )
[download]

  -> deserialize(join '', $response)
[download]

You write:

I receive the response and It's supposed to be a data array

So, I'd expect either

my @response = $soap->call( ... )
   ...
  ->deserialize(join '', @response)
[download]

my $response = $soap->call( ... )
   ...
  ->deserialize(join '', @$response)
[download]

Did you check what $response / @response really is?

--shmem

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}