Yes I agree its really very annoying and after silently suffering from more then months today serched on net first and saw this thread but not found any nice solution so I called customer care of Service Provider (Idea in my case) and it takes little time to make him understand problem but once he understood he searched solution and finally gave a number ( *121*57#) to deactivate this nuisance and Waaaao I got confirmation to deactivated in seconds..ussdtonotification does not work on 4.2.2. I had to switch of mobile data all together to get rid of the pop up dialogs. Is there an app that works on Android version 4.2.2.
I urgently need something to stop the pop ups.
P.s Pls do check with ur service provider deactivation number..