Instructions
Call Sony Entertainment customer service at 1-877-971-7669. Press "1" to select the PlayStation 3 as the console you're calling about.
Press "2" on your phone to select account questions.
Press "4" for account deactivation questions. Wait until the automated operator finishes. You will be connected to a customer service agent. Tell the agent that you'd like to suspend your account. The agent will likely ask you for a reason, but you do not need to give an answer. Provide the agent with any identifying information that he asks for, including your PlayStation Network username.