Shipping classes

Hi,

First of all, thank you for a great plugin.

My problem is:

For one country I’ve set up two different shipping classes with two different shipping costs.

I’ve currently set this up using the default WooCommerce Flat Rate setting, but when I go to checkout, a message is displayed below de default WooCommerce shipping costs.

Please see the screenshot

https://wordpress.org/plugins/flat-rate-per-countryregion-for-woocommerce/