Billing ← Knowledge Base How do I use a coupon code? How do I edit my billing information? Why do you need my credit card information? Do you offer a free trial? If I paid for a subscription at a higher price, can I be refunded the difference? How do I change my billing plan? Why do I get "Must specify VID to load by !|400" when trying to reactivate my account? I thought I cancelled, why was I billed? How do I get a refund? What if I have other billing issues not covered here?