To Allen, no I do not receive their texts period.
And to the last response, everybody in my phone can text me with no problem. It's just when I'm texting multiple people at one time only one persons texts will be coming through, even though I've confirmed it with the others that they've gotten my text and they've texted back, i just don't receive their responses. I really don't think there's anything you could do about it, seeing how it's done the same thing on all 4 of my iPhones. One thing it does do though, is when I am sending a text to someone, in the middle of it sending I'll hear the incoming text sound but nothing shows up, it's like my outgoing text is blocking incoming texts or something. But that only happens occasionally, the majority of the time I won't even hear the incoming text sounds and won't get a text from a few people completely.