Customer support is available for Sling customers and prospective Sling customers from 8 AM to 8 PM (EST) Monday through Friday, and 10 AM to 8 PM on the weekends.
When you go to Sling's website (getsling.com) or log into your company's Sling account on the web (http://login.getsling.com), you will see a chat icon in the bottom right of your screen that looks like this:
If you click on this icon, you'll be connected to Sling Customer Support.
If you are using the Sling phone app, you can also initiate a conversation with the Support team by tapping More in the bottom menu, and then tapping Help & Support.
Once you begin a chat with the customer support team, your ticket will be answered as soon as possible.