vimes1984 on "Woocommerce purchase note?"

I think i am missing something glaringly obvious here:
I am trying to include the pruchase note in the customer-completed-order.php so the customer recives the note along with the pruchase confirmation. but i am failing miserably.
here is what i have tried:

<?php echo '<div class=\"product-purchase-note\">'. $purchase_note . 'PURCHASE NOTE</div>'; ?>

`<?php $purchase_note = get_post_meta( $_product->id,'_purchase_note');
echo '<div class="product-purchase-note">' . $purchase_note . '</div>';
?>`
and this:

` <?php
$purchase_note = get_post_meta( $_product->id, '_purchase_note', true)) :
echo '<td class="product-purchase-note">' . apply_filters('the_content', $purchase_note) . '</td>';
?>`

and this:

<?php 		if ($order->status=='completed' || $order->status=='processing') {
					if ($purchase_note = get_post_meta( $_product->id, '_purchase_note', true))
						echo '<div class="product-purchase-note"><div>' . apply_filters('the_content', $purchase_note) . '</div></div>';
				} ?>

nothing seems to work....
it shows up on the order-received page but will not show on the order confirmed email.
Any help is much apricated I am also open to some other method to get the note to the client upon purchase.
such as custom meta values maybe??
Chris