You can edit the posting as long as there are no bids placed. Once bids are placed, contact Customer Support for assistance.
Drastic changes to auctions are not allowed if bidding has begun. To maintain integrity, an auction post should accurately represent the unit size, contents, and condition. The photos are a great way to show bidders you care so use these as way to represent the unit in a way that allows the unit to be valued by the bidders in a fair manner.
The Customer Support department will determine if edits can be made; if they cannot the unit would need to be Canceled and re-posted.
As always, we appreciate you adhering to our Best Practices that support both Buyers and Sellers.