I think this one may be playing games with me, but it's happened a few times before:
Guy sends an AW message asking if I'm available at rather short notice. I email back that, yes, I'm available and if he'd like to make a booking to please text or call as I may not be able to log back in to AW for a while. He emails back and asks a more specific question about time and location. Since I'm still logged on and sitting at my computer, I reply - and reiterate that he should call or text. He replies with another email with another question. I answer his question and then say that I won't be able to log back in "for a couple of hours." And then he sends another message! This time, I didn't reply (I didn't log in, just saw the forwarded message via my phone.) I figure if he really wants a booking he'll use the phone number that I pay to display.
But it's happened before. Are some guys paranoid about using their phones? I have had one or two say they can't text but will call me. But I don't know if the others are just playing games or if it's common to be paranoid about texting.