11-01-2015 07:11 PM
11-01-2015 07:22 PM
What does your online account say about your text allowance balance?
Can you receive texts?
Has anything changed on your phone - e.g. software update etc.?
If you can't send or receive texts then is the SMSC correct?
On Android you can check the SMSC thus:
http://arledia.be/android.html
Hope this helps.