I have unlimited text because I'm texting alot with family in Europe. Now I have a problem concerning sending and receiving text messages with two of my friends; I don't receive any of their texts and when I try to text them, they won't go through and I get the message "Message expired by service".
Can someone please tell me what that means and what I can do to solve this problem??? Is it my phone, is it their phone, my provider or their provider???