Hi again,
I’ve added the Woocommerce Product Add-on plugin and the extra options are not adding to the cart. I’ve found this note > Is this the case with WooPress Theme for WooCommerce 2.7.3 as i’ve tested all plugins and cant find the issue.
“Because some themes still bundle old files for the add to cart template being used for variable products, adding a variable product to cart fails. This should be solved by the theme developers by updating the template file.”
Thanks