From Wix.com

Welcome to Wix Premium Upgrade Support Section

Here you’ll find answers and links to most premium-related questions.
If you came looking for information on our upgrade plans that let you use your own domain - remove Wix ads - Add Google Analytics site stats and more to your Wix sites, you'll find it here

Top Premium How Tos

All are step-by-step guides, complete with screenshots to make it even easier…

• How to connect / use your own domain 
  
• How to connect your email service / business email 
• How to use an alternate domain or correct a typo
  
• How to add Google Analytics site stats to your Wix
  
• How to cancel or downgrade your Wix upgrade
• How to use Wix eCommerce to set up an online shop
• How to take advantage of promotional codes and coupons

More Premium answers: http://support.wix.com/index.php/Premium_FAQ

Popular Questions

• Can I Remove the Wix Favicon? Currently, if you upgrade to any package that includes "Remove Wix Ads" the Wix favicon is removed. NOTE: Customizing / Changing to your own favicon is coming soon!

Still need help? Email us at premium@wix.com.