I am so stressed out right now! I've been with Giffgaff for about a week and a half, after leaving 3 -  and now am starting to regret this! Ever since being with GiffGaff I am sometimes not recieving messages and nor are they being sent to my friends sometimes. This always happens when I am out and about and have no access to wi-fi. (I have an iPhone 4) However, I do have unlimited data AND my 3G is enabled - including imessage. But when I have no connection to wi-fi, the imessage turns to text message instead. Why is this happening!? :( This never happened with network 3. I cannot even send any pictures through imessage if I am not connected to a wi-fi network. Where as before -  I could do all of this with just data. This is really starting to get to me - any help will be appreciated otherwise I'm going to have to leave this network and that's not something I want to do. x