If you recall the account they will just recall it back judging that you gave them all of the correct information.
I am not quite sure on the paypal dispute policy though... it could be +/- 60 days... so you'd need to look into that before anything because you could be left without the money and account.
Here I just found a source that states 45 days...
http://ebaywiki.jot.com/Articles/~~PayPal_dispute/claim_information_for_buyers~~1000000000001129File the dispute via the PayPal Online Dispute Resolution process within 45 days of the date of the payment, and then escalate the dispute into a claim.
Be careful, and good luck.