You refer to a campaign here - are the one of the Cards that are supported by the Ads platform (website, lead generation, etc), or are you using one of the other, markup-driven card types?
If this is an Ads campaign the best approach would be to use the Help link at the top right-hand side of your ads.twitter.com dashboard to request assistance. Thanks!
If these are summary or player cards from your website, could you please share some example URLs?
