So I see that the NA/EU PSN Maintenance is over... and so I tried again on PS3... and guess what?!

YES!!! It's still giving me "No valid service account..." error, despite I could play it last night on my Windows client!!!! Did I just buy a dud from PSN?!?!?! So who is it at fault then? Sony? SE? Both?

At this stage, it's very SE's fault as their support team hasn't replied to my support tickets regarding "No valid service account" - worse is, I can't even change the SQEX ID on PS3 as it is greyed out!!!