Have you told Costco what happened with their employee screwing the purchase up? And if so, would they not give you the correct product?
You shouldn't need the receipt. Costco can pull up your purchases on their computer. They track all that. And should be able to provide a duplicate receipt when required.
If Costco won't make good by it, we can tell you how to phone TurboTax Support to discuss it with them.
