How to enable picture messaging on iphone 5?

Okay so i just bought an iphone 5 and i'm with rogers. I have picture messaging allowed on my phone but for some reason i just can't send pictures or can't receive any. My imessage is turned off and my mms messaging is turned on, but i still can't send or receive. How do i allow pictures to be sent and receive without having to reset anything? Please and thank you.

Probably data Is turned off