My phone plan does not allow me to send or receive text messages. If you have sent me a text message in the last six months or so, I did not get it. I am not ignoring you. I still want to be your friend. You can email me, IM me, or god forbid, actually call me, and I will be happy to converse.
My phone is old and I am cheap, and thus, I will continue to be sans text-messages in the forseeable future. Please plan your communications strategies accordingly.
Now back to our regularly scheduled program.
UPDATE: So several days after I opened my big mouth, I found out that I can now get texting on a small charge per-message basis again. Text away.