If you're here to track a counterclaim, access the system to manage your counterclaims here:

Counterclaims occur when the control of copyright within a Musical Work, or entitlement to royalties in that Work, is subject to two or more conflicting claims. There are three categories of counterclaim:

Details of duplicate claims that were started before 16 April 2015 as well as disputes that were resolved before this date can be found in the old system here.