Little help!

[Okari_86]

So my brother tried to access his account on the PS3 but it said "PSN is undergoing maintenance" normal enough. But I try mine, logs in; no problem. Now, I want to know if he has been banned for being hacked up to the level cap on Black Ops 2, or is it something else?

Notes.
Wireless connection: sky
Model: 180gb slim
Region: UK