iphone 5 data not working on metro pcs

I recently switched 2 verizon iphone 5's to metro pcs, my calling and texting works just fine, however anything that requires data doesn't work. Such as the internet, location services, imessage, face time, and certain apps. I've tried taking out my sim card and reinserting it, putting the phone on airplane mode, and turning the phone on and off a few times still no data. My reception is really good I almost have full bars everywhere I go and it says 4g next to it. Has anyone else had this problem. My phone is currently running on ios 7.1.2. Any ideas or suggestions for this problem would be great!

Thanks!