I've joined iD and switched from O2. I had a temporary number assigned to the new sim card I was given. The number I wanted to keep has since transferred over, however RCS chats is still using the temporary one.
I have tried switching RCS off and on, verifying my number, taking the sim card out and in and nothing is working.
Can anyone advise? It seems a small thing but I use text a lot as my primary messaging app.