[AC Question]

So last night I downloaded a couple of apps, one called Zedge which has many sound effects, and another called MegaSound which I used to assign custom notifications to my emails, Facebook, PSN and YouTube. All of which worked very well... except YouTube! I just can't get it working! The box "Receive notifications" is ticked. I thought that as the notifications are actually from Google+ I could try that... didn't work either! I believe it also isn't helped by the fact that whenever I check the notifications tab on YouTube from my tablet, it never shows anything, regardless of whether anything has happened or not.