You're welcome.
You sold that bag and the buyer is alleging that it's fake? Have you directed the buyer here for reassurance or to voice her concerns?
Does she say why she thinks it's fake?
I'm going to PM you because it's really long and I don't want to hijack the authentication thread.
Please let me know if this will be an issue - thank you again!
I hope you don't mind that I respond to part of your PM publicly because the buyer's reason for believing that the bag is fake is something we see (or hear about) far too frequently.
Your buyer loved the bag, tried to find a wallet to match and when she wasn't successful, she called
Coach. She was told by Coach that the color of the bag that she bought was never made by Coach and must be counterfeit. (The bag
was made in the color shown and the person she spoke to was wrong.)
My own editorial comment is that I wish Coach and its employees would live up to their own policy and not authenticate! They aren't allowed to authenticate, aren't trained to authenticate and even if they did, they should know that they can't authenticate a bag (or other item) based on a serial number!
When they do try to authenticate, whether in person or over the phone, more often than not, they either spew misinformation (at best) or outright lies (at worst). If buyers tell them a purchase was made through ebay, Coach will tell them it's fake, whether or not there's any truth to that statement. (Coach doesn't want its products sold on ebay by unauthorized sellers and this is their way to get back at them.) Other times, they'll look up a style number in their computer, see that the style number is valid and deem a bag as authentic when in fact, it could be fake.
If your buyer likes the bag and wants to keep it if she can be reassured that it's authentic, she's welcome to read and if desired, ask questions here.
She can also get a professional authentication (either you or she can pay) for $7 from authenticate4u.
I feel bad for you for being accused of something you didn't do but I also feel bad for your buyer because she got bad information from the manufacturer, someone you'd think you can trust.