Apologies for my interfering, but my interest was sparked by the serial number, which I have on my list of known fakes - I am not a tpf authenticator, but a professional reseller, and this serial number is circulating on some fairly good 'super fakes' mostly coming through the states. I have been offered a few bags for sale with this same serial number (I am sure one was an oak Bayswater), and at the time I did a wee scour of the net, and someone tried to authenticate another on tpf - may 2013 closed discussion, page 206) all this same serial number.
Obviously the authenticators here are very experienced, and Lesley at authenticate4u can also help, but I felt this info should be shared.
I hope this helps in some way, this must be an upsetting experience for both buyer and seller...
Hanlovesbags x