My wife likes seaweed. I texted her the same text you used. She got the message no issues on her phone. SMS is not a guaranteed delivery service. Perhaps the me

My wife likes seaweed. I texted her the same text you used. She got the message no issues on her phone. SMS is not a guaranteed delivery service. Perhaps the message simply didn't go through? I see later in the comments you paraphrase something you said you were told by a T-Mobile representative. Perhaps the representative didn't even know if something was blocked but felt they were on the defensive?