Missing Twitter SMS updates? This does happen occasionally. If the Twitter SMS queue is too overloaded with text updates, some may be dropped. This means you may experience occasional missing updates from certain people at busy times. If you're missing updates from the same or all account(s) consistently, this may be a different problem.
Submit a support request with the details about what's happening. Don't forget to include the following info:
Assuming that you haven't exceeded any limits, you may not be getting updates because Twitter was unable to communicate with either your phone or your network, and turned off your updates automatically.
A number of users are not receiving SMS updates of @replies for accounts they follow. Normally, it works like this: @bob follows two accounts (@keerthi and @charles) and has device updates activated for both accounts. If @keerthi replies to @charles, then @bob would receive that Tweet on his mobile device via text message.
However, for some users, @keerthi's reply to @charles never shows up on @bob's mobile device. If you believe that you are experiencing this issue:
If you have verified your mobile and account settings, and are receiving normal Tweets via text but are still missing @replies, please contact Mobile support.