If you are in the Zombie Netblock space, you are using IP space of which, in SORBS' opinion, you are not the rightful owner. You are welcome to submit any information to persuade the administrators that you are the rightful owner, but please understand it is the sole discretion of the administrators of SORBS as to whether the information is adequate for removal. Suitable information is usually an email from the responsible Regional Internet Registry (RIR) indicating that you are confirmed as the rightful owner of any network. If you have purchased the network from a former employer, you will be asked to show detail that a legal transaction occurred. Please refer to the Zombie Netblock FAQ for more information.
In the event that your ISP has issued the listed address space to you, you will need to resolve the issue directly with your ISP. SORBS does not get involved in disputes between an ISP and their customer.