Stripe & Prosites webhooks setup

Hi, I upgraded to ProSites 3.4.1 which is the latest version which is supposed to fix Stripe web-hooks issues. I am still having issues with Stripe & ProSites not communicating together. When a payment is made the site is not upgraded in test environment.

1) What web-hooks do I need to use inside Stripe?

2) How do I set this up for my domain?

3) What else do I need to do inside Stripe test environment to make ProSites work?