You should have filed to cancel within the 1 hour when you won the item. Ebay starts the cancel 1 hour clock the monent you or any buyer has been declaired the. " We're also streamlining the cancellation process to make it easier for buyers and sellers to cancel a transaction directly from My eBay. eBay is making it easier for buyers to cancel orders. Previously, buyers had to contact the seller directly in order to request an order.