Not showing all the customers

Hi,
I tried using the full shortcode and it didn’t work.
So I looked through the forums and slimmed it down just to the product for the first example on the page [customer_list product=”3960″]

But I have two customers for each of these products, but it’s only showing one customer.

For the second one I used the full shortcode in the example.

And then how do I add in the additional details, like email address etc without having it show “This product currently has no customers”

show_titles=”true” order_status=”wc-completed” order_number=”false” order_date=”false” billing_first_name=”true” billing_last_name=”true” billing_company=”false” billing_email=”false” billing_phone=”false” billing_address_1=”false” billing_address_2=”false” billing_city=”false” billing_state=”false” billing_postalcode=”false” billing_country=”false” shipping_first_name=”false” shipping_last_name=”false” shipping_company=”false” shipping_address_1=”false” shipping_address_2=”false” shipping_city=”false” shipping_state=”false” shipping_postalcode=”false” shipping_country=”false” customer_message=”false” customer_id=”false” customer_username=”false” order_status=”false” order_payment=”false” order_shipping=”false” order_coupon=”false” order_variations=”true” order_total=”false” order_qty=”false” order_qty_total=”false” order_qty_total_column=”false” limit=”9999″]

The page I need help with: [log in to see the link]