I have a annoying problem since I updated my iPhone 4S to iOS 6:
when I sent a message to someone and I get the reply, the reply is not added to the normal conversation but a Group MMS will be created, with the replier and me as a recipient.
So here are the two annoying things about it:
the whole conversation overview is split into two conversations, one conversation only with my messages and the replier's Group MMS with his/her reply. No overview about the whole conversation at all
Every time I reply in that Group MMS conversation, the iPhone also sends me an own message, having me as a recipient. That is just annoying because then I have my message twice and I have to delete the extra message in order to keep the conversation clean and of course the phone rings and vibrates when I get my own message.
I cannot merge the two conversations and I didn't find an option to turn Group Messages off or to delete me as a recipient. And it happens to every message sent, so probably not an iMessage bug.
As a carrier I have SoftBank from Japan. In Japan they use e-mail addresses instead of numbers, maybe this is causing the whole thing. But I doubt it a bit because before the update everything went fine.
Can somebody help me?