Few Problems

I've an iPhone 4S and I upgraded OTA from the last iOS 6. I really like the new iOS but I'm having two issues.

I don't seem to be getting push notifications but I did in iOS 6. For example every time I go into what's app it says connect to iTunes for push notifications and I press ok but it then asks me the next time I go on again.

Find my iPhone doesn't work for my iPhone but it does work for my iPad which was upgraded the same way. It doesn't list my iPhone as a device and I have it turned on and even deleted the app and turned it off and then reinstalled it and turned it back on but it didn't change anything.

Appreciate any help