Hello, I am a new user. I want to set up free shipping after 50.00. I have the free shipping extension turned on. I have the total set to 50.00. I have the auto select turned off. I have the flat rate shipping extension turned on. I have all locations enabled for a flat rate. I have the auto select turned off. The issue is that it doesn't charge shipping on orders under 50. What other setting do I need to change for this to work correctly?