Since I got my phone back from repair, I've found when i drop down the notification bar, I can't see the details of the notification, only the app it's from. I can't even click on them to expand them, but if I swipe one away then they all suddenly become available.
Seems there has been a software update that's been applied since I sent it off.
Have you tried going into settings and adjusting notications in there. I'm assuming the phone was factory reset, so all your original settings will need redoing