My iPhone isn't recieving pictures?

So people ask if I got any pictures they sent, and nothing shows up, like its blank. I can send pictures, but only if I turn my cellular on. I have a iPhone 4 if that helps at all. It is really annoying cause no pictures are cominbg through!

Multimedia messages are only supported while cellular data is on.

  • Why is my iphone recieving texts late? I'm texting my girlfriend and she gets my texts on time but when she sends back i don't get them for like 20 mins to an hour.imessage is working fine for me. My girlfriend does not have an iphone. But some other people i've been texting without iphones are replying and receiving my texts at a normal rate… Its getting annoying
  • Recieving text messages from unknown callers? Simply saying, "Hey." it has happened a few times in the past as well. My phone is an iphone and is fairly new from last December if that helps. So who are these people? Is it safe to open the message so long as you don't reply? I accidently went to the message, and hope that no one is currently hacking my phone.
  • Not recieving text until like an hour later? I've just got a iPhone 5 on contract from my blackberry, I have switched from Orange to EE & for some reason I'm not recieving certain people's text until like an hour later, mine seem to send straight away it's just recieving. Any ways to fix this?
  • Not recieving text messages for iPhone? I have an iPhone 4 and my boyfriend has an Android. We can send texts back and forth easily, but when we wants to send me a rather long text, I never receive it. He tells me he presses send and it tells him it sends, but I never receive any message from him. It's really quite annoying because I want to know what he is trying to tell me and I think it might be my iPhone that's screwing everything up. Is there any way to resolve the issue?