Hi all, I have an iPhone 4 and did the stupid thing and upgraded to iOS7 and now there is an issue with my text messages. My phone does not notify me that I have a new text message and the only way I will know is by clicking on the text message app and going into the application and that's when I will see them sometimes I may even get messages a lot later than I should have received them. I have never used iMessage as Im not a fan of it so I leave this switched off. Can anyone help please???