Ms Andre
Are you sure that it is a UB50 and not UC50? the UC50 is used to decide whether you have Limited Capability for Work and therefore whether an award can be made. If it the latter then have a look at our UC/ESA Claim guide for help completing the form and an understanding of the criteria that you will need to meet.
You can work on UC, even if you are in the no work group, doing so may reduce the amount of UC that you are entitled to, although there is no defined limit it is generally accepted that if you work for 16 or more hours a week then you risk being moved to the work group.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems 
