I get charged for texts that are NOT imessages--incoming or outgoing. When someone using a phone other than an iphone, it counts as a text message, not an imessage. The problem with group messages is that when someone replies, everyone in the group gets the reply. We have no way to control how many people send replies. I am hoping for a way to remove myself from a group when I want to stop receiving other peoples' replies.
And yes, we can go back to the person who originated the group message and ask them to take us out of the group, or stop including us in group messages in the first place. And I've done that. But it doesn't stop another person from doing the same thing.
We can turn off group messages altogether on our phone. The phone itself gives us that option. But then you receive no group messages at all. It seems like there should be a way to remove yourself from a group AFTER the group thread has started.
There are times when I want to receive the initial message. But what I don't want to receive are all the "replies" from people I don't know, who don't use iphones and therefore use up my text messaging capabilities. I end up paying for texts from people I don't know and every text, even the shortest "Thanks" or "Ok" count as one text. So if the group message originally included 25 people and they all reply, and then the origintor of the text replies to some of those and other "conversations" start, the thread can quickly grow to 50-100 texts and that has happened.