My GF and I managed to sign in on both BL2 and TPS, but after trying to access the little shift vending machine, we get the same message as has already been stated in this thread. So problem is still ongoing.
Oh, and we are both experiencing the issue where either BL2 or TPS will not create online sessions. Yes, network is fine, PS+ subs are active etc etc. No issues from either of us with other games online, only THC. We can get around this issue by going through the network connection wizard in the "System->Network menu, but this sometimes takes a couple of tries before either BL2 or TPS will create an online/friends lobby. Not sure if these issues are related, but i really hope a fix is coming. Coming from big Borderlands fans, this is very disappointing.