I agree that we're only seeing one side. Spatrick may have been a "problem" customer in their eyes; but that does not excuse PSN's rude and unprofessional behavior.
While not all the facts are known, I feel that enough is known that if it were my choice, I would not choose PSN.net unless they were the only option in my area (unlikely). Professionalism and good customer service go a long way with me; and neither are being demonstrated by PSN.