@Leo12, that behavior of SMS texts applies to phone-to-phone texts. But not to the messages that AirBnB sends to you as SMS texts. If someone posts a longer message in AirBnB's messaging system (which is not SMS-based) AirBnB truncates the message when they send it to you as an SMS text. They don't send the remainder in subsequent texts. That's their design decision (and a dumb one, if you ask me).
The solution to this is to install the AirBnB app on your phone. The app will pop up the complete message from the guest on your phone, even if you're not currently running the app. (I'm actually configured to get *both* types of messages. They usually arrive, redundantly, within 2-30 seconds of one another, but sometimes one or the other will lag by up to half an hour.) By the way, I use an iPhone. I have no idea how any of this applies to Android phones.
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