If anyone has had experience with sending bags in to Gucci for repairs can you tell me what your experiencee was like as to what kind of repairs you've had done and what they were able to do? I'm just wondering what all can be fixed? If a bag has severe wear to corners can the make them look nice again? What about zipper pull tabs? Not the silver metal part but replacing the actual pully thing if its fallen off. Knicks or scratches in leather, damaged piping around the bag that type of stuff???? Is a receipt required to send it in for repair?