Unable to remove the add to cart button

Using the WPC Buy now button with the WPC Composite products, and the Hello Theme with Elementor. The custom message and straight to check out works fine but I cannot get rid of the standard ‘add to cart’ button, even though it is set to not show in the plugin settings.

The product page is an Elementor themed page with the product added via the widget.

I hope someone can help point me in the right direction.