Export addresses CSV for voucher chase-up

A CSV of addresses we have on system that are eligible for a voucher but we don't seem to have a customer on record that has claimed for the address. If we do have a lead on record the fullname will be included along with the lead id.
{!! Form::open([ 'url' => 'voucher/export_unclaimed_addresses', 'id' => 'csv_form', 'enctype' => 'multipart/form-data']) !!}
Area select area to generate vouchers for. {!! Form::select('area_id', $areas, null, ['id' => 'area-select']) !!}
{!! Form::close() !!}