Has anyone experienced problems with the Paypal chargeback system?

[tuffy42tuffy]

On September 9th.a buyer won an item from me. It was posted the next day by REGISTERED mail. Yesterday (67 days after the purchase) I received a chargeback account hold from Paypal who advised me that the buyer has stated his account was used without his authority.

I provided proof that the item was  received and signed for by the same person who lodged the chargeback claim.The item incidently,was delivered the very next day after payment and to the correct address.

Astonishingly,Paypal  accepted the claim after all this time but I would have thought the claim has been lodged well out of the time frame.

At no stage has  the buyer contacted me to open a discussion so I think the best way to solve the problem is to invite the Post office investigations department to look into the matter. That way the signature of the person who actually signed for the letter can be compared to the signature of the member and if it should differ someone is open to fraud charges.

Any suggestions please?...and has anything similar happened to others?...I'm particularly interested in view of the time frame factor in terms of days..