Cell Phone Conection

I am having a hard time connecting my cell phone to my twitter. I can update from my phone but I am not receiving updates. I have Verizon Wireless and I am in the USA so I should be able to get it. I have registered my phone so when I do update it shows up on my account but it isn't quite getting all the way hooked up becuase I'm not getting updates from the people I fallow.