I know the rail closure from SA to Wa created a massive backlog.  Had an item shipped to  WA that was delayed over a month.  Buyer claimed INR,  case was extended as item showed delayed, item was then delivered, and as a matter of goodwill ebay still refunded the buyer out of their pocket.  No defects or cost to me as I had met my shipping obligations and tracking showed item sent within 24hr handling time.