Plugin Doesn’t Work

installed, activated and set up plugin. used this article. https://help.printify.com/hc/en-us/articles/4483635992081-How-do-I-set-up-shipping-with-WooCommerce-

when I do a test purchase, the only two shipping options are flat rate and local pickup – these are from Woocommerce, not printify.

I need full specific details for how to implement printify shipping in my woocommerce site please.