Duplicate Categories being shown

Hi I am trying to setup my custom post types archive page and taxonomy, I have that setup no prob.. My dilemma is that I am trying to use the snippet below to show the categories available for my CPT with links to those categories archive pages.. Like I said everything is working fine except the categories show up multiple times.. I have attached the template hoping that someone can tell me what to do or what I am doing wrong and why it lists multiple times.. I do have a dropdown towards the header that allows users to filter out the page, but want to have the main archive just display the categories too. I hope that makes sense. Like I said it just lists multiple times so I dont know if I need to reset something or what..

<?php
/*
Template Name: Archives for Sponsors

*/
?>
<?php get_header(); ?>
      <div id="pagename" style="width:200px;float:left;">
        <h2><span>

		<?php if (have_posts()) : ?>

		Sponsors

		</span></h2>
      </div>
      <div style="width:300px;float:right;padding:20px;">
      <?php get_search_form() ?>
      <div style="height:10px;"></div>
<?php

  $categories = get_categories('taxonomy=sponsors_categories');

  $select = "<select name='cat' id='cat' class='postform'>n";
  $select.= "<option value='-1'>Select category</option>n";

  foreach($categories as $category){
	if($category->count > 0){
		$select.= "<option value='".$category->slug."'>".$category->name."</option>";
	}
  }

  $select.= "</select>";

  echo $select;
?>

<script type="text/javascript"><!--
    var dropdown = document.getElementById("cat");
    function onCatChange() {
		if ( dropdown.options[dropdown.selectedIndex].value != -1 ) {
			location.href = "<?php echo home_url();?>/?sponsors_categories="+dropdown.options[dropdown.selectedIndex].value+"/";
		}
    }
    dropdown.onchange = onCatChange;
--></script>

         </div>
         <div style="clear:both;"></div>
    </div>
    <!-- container END here -->
  </div>
  <!-- header END here -->
  <!-- content START here -->
  <div id="content">
    <!-- container START here -->
    <div class="container">
      <!-- main-colum START here -->
      <div id="main-colum" class="two_third">
      	<?php yoast_breadcrumb('<p id="breadcrumbs">','</p>'); 

		?>
		 <?php while ( have_posts() ) : the_post(); ?>
                 <!-- Display review title and author -->
                 <?php
				 if ( is_post_type_archive('sponsor_post_types') ) {

				  ?>
				  <div><?php   $args = array( 'taxonomy' => 'sponsors_categories' );

$terms = get_terms('sponsors_categories', $args);

$count = count($terms);
if ($count > 0) {
    $cape_list = '<p class="my_term-archive">';
    foreach ($terms as $term) {
        $i++;
    	$term_list .= '<a href="/sponsors_categories/' . $term->slug . '" title="' . sprintf(__('View all post filed under %s', 'my_localization_domain'), $term->name) . '">' . $term->name . '</a></p>';

    }
    echo $term_list;
} ?></div>
				  <?php
			  } else {
				 ?>
                <div style="width:200px;float:left;"><a href="<?php the_permalink(); ?>">
               <?php if ( has_post_thumbnail() ) {
				    the_post_thumbnail( array( 100, 100 ) );
			   } else {
                the_title(); } ?></a>
                </div>

              <div style="width:200px;float:left;">
              <?php echo esc_html( get_post_meta( get_the_ID(), 'sponsor_phone', true ) ); ?>
              </div>

              <div style="clear:both;"></div>
              <hr />
              <?php } ?>
         <?php endwhile; ?>

<!-- Display page navigation -->

<?php global $wp_query;
if ( isset( $wp_query->max_num_pages ) && $wp_query->max_num_pages > 1 ) { ?>
    <nav id="<?php echo $nav_id; ?>">
   <div class="nav-previous"><?php next_posts_link( '<span class="meta-nav">&larr;</span> Older reviews'); ?></div>
   <div class="nav-next"><?php previous_posts_link( 'Newer reviews <span class= "meta-nav">&rarr;</span>' ); ?></div>
  </nav>
 <?php };
endif; ?>

      </div>
     <!-- main-colum END here -->
	<?php get_sidebar('blog'); ?>
	</div>
    <!-- container END here -->
  </div>
  <!-- content END here -->
</div>
<!-- site-wrapper END here -->
<?php get_footer(); ?>