With regard to your prescriptions, if you are on a low income you may be able to claim assistance with the charges, you need to complete an HC1 claim form.
Alternatively, a prescription pre-payment form allows you to pay in advance and at a fixed rate.
You can Google both of these for the details.
With regard to being placed in the Support Group. As you are requesting the assessment, you will need to provide up to date evidence that you meet one or more of the SG criteria.
Good luck
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems