Its a wonderful thing that Ebay's spokesperson doesn't even know ebay's posted policy is to guarantee you can leave feedback for 60 days after the transaction.

And eligibility for their insurance requires that a fraud report be filed within 60 days of the close of the auction

http://pages.ebay.com/help/community/ins-guide.html

http://pages.ebay.com/help/basics/f-feedback.html#3

Q.
When should I leave feedback?
A. After completing any transactions on eBay. Your honest feedback shapes the eBay community and specifically impacts the success and behavior of other eBay members. Make your voice heard!
We strongly encourage you to always leave comments about a specific buy or sell transaction within 60 days after the end of the auction. eBay guarantees that all items will be available on our system for at least that period. After 60 days, you can still try to send in feedback, but items may be removed from our database without prior notice. If that happens, you will not be able to leave feedback.