When bankrupt Lily Robotics announced that its self-flying, follow-along camera drone wouldn't be produced, it promised to refund $34 million in pre-orders back to its customers. That's still the plan, but according to a new refund request form, the company isn't sure when those payments will actually go out, Engadget reported on Friday. The refund process is being run through Prime Clerk, the agency helping Lily Robotics navigate its bankruptcy claims. By making the refund process part of its bankruptcy, the company is hopefully ensuring that all of its customers will eventually be paid back for their pre-order. Lily Robotics hopes to refund most customers directly on the credit card, but is working on a plant to reimburse customers by other means if the original purchase card is no longer active.