hello. I’ve had this customer bought a vintage bag from me on dec 16 and she received item on the 18th. Before she bought the bag, she asked for proof of purchase and i said i couldn’t provide as it was purchased long time ago but I can get it authenticated by a third party called legitgrails and she was ok with it. The next morning I have emailed her authentication from legitgrails including certificate of authenticity. And just after a week and a half of receiving it, she claims that the bag was fake and wants a refund. Told her I can only refund her if she can provide proof on her end th...