Normally when someone send money to a paypal account that never existed, the email owner still able to create a new paypal account with the same email address and claim the money. It happended to me once and I able to claim the money. If the money didn't claims, it actually still remain in the owner hand. So, admin still can cancel the old transaction and resend the money to your correct paypal account. Anyway, since you already get the money, this thread should be close!