Sony has recently updated their terms of service regarding the PlayStation Network, clearing themselves from possible future lawsuits from users and companies.
The reason Sony have done this is simple, the terms of service comes in the worry of hackers, hacking the network and posting user details online. Sony has been hacked once before, with tens of millions of users data publicly uploaded to the internet for anyone to download and use.
The new TOS agreement says: Any Dispute Resolution Proceedings, whether in arbitration or court, will be conducted only on an individual basis and not in a class or representative action or as a named or unnamed member in a class, consolidated, representative or private attorney general action.”
If the user does not agree with the new terms of service, then Sony will happily allow you to close your account and return any funds to you.