Facebook Messaging Problem? Can you help me please?

[Samantha]

Okay, so I deactivated my account on Facebook. I then decided that I didn't want to delete it. So, I logged back on the same day. My messages and everything on Facebook gets sent to my phone. There's a problem here, though. Now, after that deactivation happened, I can no longer receive messages on my phone telling me that I have a message on Facebook. It's really super annoying, since I've had my FB for 3 years now, and I don't want to delete it or make a new one. These messages are the only way my boyfriend and I can text while I'm in school, or when I can't get on FB. I also looked in my settings, it says that I have them sent to my phone, and I have unlimited texts a day. I'm really confused, and if anyone can help me figure this out, that'd be great. Thank you!