To be honest when I spoke to the swisscom help line they thought the ID card thing was working properly. Anyway I didn’t really need an ID card scan just needed to wait for a letter to give me an access code back into my account.
I think the reality is that swisscom made a whole load of changes mostly without telling their customers and are going to be working for a while to clean up the mess they made.
P.S. I know this is a user support group and I know the users didn’t change anything but swisscom would be foolish not to be following it a bit.