I didn't see any purchases of $1,000 in your bidding history. Was this an ebay transaction? If not, there is nothing ebay or paypal can do for you.
If this was an ebay transaction (perhaps a priviate listing), file an item not received dispute or not as described dispute within 45 days of end of sale.
I would have been nice if you had provided more details as to what too place with the transaction.
**********************************************************************************
Non payers should get unpaid item strikes and be added to block bidders lists. Period.