My partner has created a joint account and I got an event, for accepting it. So far, so good. However, after clicking accept a dialog appears, asking me, if I'm sure. After clicking yes, the dialog dismisses and I still see the question, if I want to reject or accept the joint account. Now I am able to accept it again and the dialog appears again. I'm able to do this as often as I want. I didn't tried to reject it, after I had already accepted it, so I don't know what will happen.
Anyhow, to complete the process, I have to click the back arrow in the top left corner to exit the question, if I want to accept the joint account. This is very confusing...