I have a Chanel bag I purchased the year NM KOP opened and my DD carries it everyday. The zipper broke and foolishly I took it to my shoemaker for a quick repair. He replaced the zipper, did a bad job, and now I want to send it back to Chanel for a proper repair. I don't have the receipt anymore, altho I did purchase it at NM-maybe they can look it up? Has anyone had a similar experience-I am afraid Chanel will reject it because it has been tampered with!