I am looking at your offer history and the system does not show that you have made an offer using the Make Offer tool since 2005. This is why the ad is not listed in the My Offers page.

This can only mean you made your offer with the Ask Seller A Question tool. When you do this, there is no offer recorded in the system and feedback cannot be posted for either buyer or seller.

Please be sure to use the Make Offer tool when you make an offer in the marketplace.