Hi all, So I apologize if at some points I am vague but this is a very new thing for me. I recently relocated to Australia. Popped in an Optus prepay card into my Apple-unlocked iPhone 4S and worked well for two months. Recently I have switched to Amaysim, they still use the Optus network but have different packages (e.g. unlim data, text, etc. etc.). Anyways I noticed recently that all my iMessages were going out with my email as the caller id. My personal email is the email I use for iMessage so I didn't like this (I had originally set it up so I could see convos on my iPad). When I go in to change it I see "waiting for activation" and my phone number perpetually in 'verifying" under settings. FaceTime get an error as well. One thing I have noticed is that when I turn on/off iMessage to try and restart it, I get a message from my carrier saying "A message you have tried to send failed because you do not have enough credit for that type". I have unlimited messaging in Australia so the only type of message I cannot send are international. Should I try adding credit so that whatever signal my phone is sending can go through or is this totally separate. Any help is appreciated.