If you are billed through the Roku Channel Store or Amazon Pay, Sling may not be able to refund you directly. For help navigating "Third-Party Billing" and getting credits for app crashes, call 1-888-824-9427. FAQ 1: Why can't Sling refund my Apple-billed account? Apple controls those funds; call us for the steps. FAQ 2: How do I switch billing to Sling directly? You must cancel on the device and resubscribe on sling.com. FAQ 3: My Roku app won't update; can I get a credit? Call 1-888-824-9427 for technical help. FAQ 4: Can I use a Sling Gift Card on Amazon? No, gift cards only work for direct Sling accounts. FAQ 5: Who do I call for Firestick errors? Call 1-888-824-9427 for device-specific support.