Don't mean to hijack the the thread, but if she is at a confirmed address and the item arrived then paypal will most likely side with you.Please do not accept Paypal as payment. I was just scammed this way from a buyer at a confirmed address in London. She'd doing a chargeback (sold to her on Dec. 11th!) and there's nothing I can do about it. Now she has my bag and is probably getting a refund.
I just went through a similar situtaion and after the investigation paypal released the funds back into my account. The buyer had a confirmed address and even left + feedback for me back in December, so I have no idea even why she processed a charge back to begin with.