Klaviyo not integrating with WooCoomerce

I’m posting here because the problem I’m having is impacting my company’s revenue.

Klaviyo totally doesn’t wan’t to integrate with WooCommerce. I’m getting the error message “We can't complete your setup - Details: Non 200 Response Received” when I try to establish a connection from Klaviyo WooCommerce plugin newest version(v. 3.0.1) to the Klaviyo platform. 

I contacted Bluehost to assist in whitelisting the user agent but they refuse to assist and say that the plugin is a third party plugin and they can’t help since there aren’t any errors on the WordPress dashboard. 

I’ve tried the steps that support team has offered here from a user with a similar problem without any luck. 

1. Delete the WooCommerce integration in Klaviyo
2. Delete the Klaviyo plugin in your WordPress
3. Re-install the plugin
4. Log into Klaviyo via an incognito window and re-add the WooCommerce integration

Still getting same error message. 

Please please help. 

I have an ongoing email conversation with the support team but would like help from any community members who were able to resolve this issue. 

Thank you