A number of advertisers during the transition process from Yahoo! Search Marketing to adCenter asked, "What happens to my YSM account balance?" The answer to this question depends on how (or if) you transitioned your account, and your status as an advertiser.
Note, in all situations (mentioned under), you don't have to request your account balance be refunded-- it'll be returned to you either in your adCenter account this month, or as a refund in early 2011.
Your account should fall into one of the following three scenarios: