Hi ESAH,
I'm sorry you are finding this so confusing. The system certainly is not easy to negotiate
There is only one face2face assessment (if one is deemed necessary). 15 points, across all descriptors, are needed to be judged 'not fit for work'. The Support Group is not points based - although some of the descriptors do score 15 points in their category.
Qualifying for the Support Group Very often, the assessor will stop counting once the criteria have been satisfied.
You might want to bookmark this now so that you can find it easily in future. That will allow you to return and ask further questions/comments without having to start a new topic each time. It helps us enormously when everything relating to the same claim is kept in one place - and I hope you will find it useful too