http://ocs.ebay.com.au/ws/eBayISAPI.dll?CustomerSupport

Here's some information that might help.

Many members have limits placed on their accounts or on certain categories and items until they confirm certain information or establish a positive selling history.

Some other common reasons for account limits are:
You haven't paid your monthly invoice.or you need to set up an automatic payment method  through a credit card or PayPal.

You have unpaid items  recorded on your account.

You didn't follow the rules and policies that applied to items you were trying to sell.

If they sent you an email explaining why your account privileges were limited, there may be steps you can take to remove the limit.

You can find a copy of the email in your Messages section of My  eBay.