If a listing has active bids then you cannot make changes as this involves revising an item and ebay's rules state that you cannot revise a listing with active bids.
You are also unable to apply a template theme to an item that has less than 12 hours remaining.
For more information on eBay's listing revision policies see:http://pages.ebay.com/help/sell/questions/revise-item.html#auction_style
Article ID: 4
Created On: Thu, Aug 4, 2011 at 2:17 PM
Last Updated On: Thu, Aug 4, 2011 at 2:17 PM
Online URL: https://apps.froo.com/kb/article/why-can-t-i-amend-some-listings-4.html