Shortcode for membership not working? Is my Mark-up wrong?

I cannot work out why this code and shortcode is not working for Membership.

The shortcode is correct, but is this mark up wrong?:

<?php echo do_shortcode('[level-visitors]'); ?>

                <div id="SignUp">

<ul>
<li>
							<a href="#">Sign Up</a>
						</li>
<li>
							<a href="#">Login</a>
						</li>
</ul>
				</div>  

                <?php echo do_shortcode('[/level-visitors]'); ?>

Just cannot work it out? - Any he'p!